Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
van hoang » tran hoang, vu hoang, anh hoang
wang yang » wang yan, wang liang, wang yanling
lang yan » wang yan, zhang yan, yang yang
hoang sy » hoang vu
yang lin » yang jin, wang lin, yang li
li cong » li rong, li song

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((lang yan) or (wang yang)) ((yang lin) or (yan liang)) ((jiu cong) OR (li cong)) van hoang sy ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yan) OR (wang yang)) ((yang lin) OR (yan liang)) ((jiu cong) OR (li cong)) van hoang sy ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) or (wang yang)) ((yang lin) or (yan liang)) ((jiu cong) OR (li cong)) van hoang sy ;*".