Just check some of my keywords in google and notice some of the keywords do not show up in google any longer after google update. Does anyone can explain to me the reason for sudden change?? Th domain need is acmelogistic dot com
from which position to which?I think it is a normal, what should you do it build more high quality backlinks, then your site will have a good rank on search engines.
Your question is a bit hard to understand…
Did you mean “Why doesn’t my website show up for some of my keywords/phrases”?
A couple of reasons:
- Google made over 500 changes to its algorithm/results/infrastructure/etc last year.
- Any one of those changes could have meant that your website/page is no longer deemed as relevant for those keywords
- Your competitors, or other websites in general, have made changes/added content that are more relevant or more authoritative than your site/page
- The freshness boost of your page/content has worn off
etc etc…
I forgot to add that maybe your site is “over-optimized” 
<title>Logistics Company | Construction Heavy Equipment Hauling | Trucking Heavy
Hauling | Freight Quote Rate | Container Shipping </title>
<meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type" />
<meta name="description" content="Acme Logistics, is a Freight and Logistics company that arranges heavy freight hauling and transportation shipping services for industrial companies in the U.S. and to Mexico and Canada. We are a flatbed trucking logistic company and container shipping for 20' and 40' loads we provide service nationwide. We also provide harbor freight pickup in many ports in New Orleans, New York, Long Beach, Los Angeles, Savannah, Miami." />
<meta name="keywords" content="logistics company, freight hauling services, freight hauling, harbor freight, freight quote, freight services, freight transport, flatbed freight, machinery moving, heavy equipment transport, heavy haul transport, truck freight, freight transportation, freight transport, trucking freight, freight hauling, logistics freight, freight shipments, rail freight, central freight, motor freight trucking, freight shipping quote, harbor freight, phoenix freight, trucking companies, trucking company, transportation services, freight shipping services, transport companies, flatbed trucking company, container shipping" />
<meta name="keyphrases" content="logistics company, freight hauling services, freight hauling, freight quote, freight services, freight transport, flatbed freight, machinery moving, heavy equipment transport, heavy haul transport, truck freight, freight transportation, freight transport, trucking freight, freight hauling, logistics freight, freight shipments, rail freight, central freight, motor freight trucking, freight shipping quote, harbor freight, phoenix freight, trucking companies, trucking company, transportation services, freight shipping services, transport companies, flatbed trucking company" />
<meta name="author" content="Logistics Company and Freight Brokers" />
or that your site has a dodgy link directory:
http://www.acmelogistic.com/freight_directory/links.php