Try to use basic S.E.M skills. Alibaba.com is very different with google or Yahoo in many ways since it is not a search engine and has services such as "Fixed Ranking Service" and "Keyword Service (which I do not understand how it really works)," however, I tried to use S.E.M basics myself and it looked like it worked. Even though I am a Gold Supplier, before using it, we were far behind within the Gold Suppliers, but now one of our products show up within the first 3 pages out of more than 32,000 products and ranks in 10th place out of more than 14,000 products competing for the same keywords. Have a go and I think it is worth a while.