Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
van hoang » tran hoang, vu hoang, anh hoang
hoang shu » hoang vu, cong shu, hoang sy
jiu cong » li cong
cong van » congo can, duong van, cong sun
yang li » yang lin, yang di, yang yi
yang xi » yang di, yang yi, yang jui
wang » wing, wan, lang

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

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