Perhaps you should try some spelling variations:
truong thanh » luong thanh, truong tran, tran thanh
thanh done » than done, than one
qian wang » yiqian wang, qian rong, qian yan
yang yang » wang yang, wang yan
yan wang » yuan wang, yan liang, yan zhang
a gene » a genre, a gender, a gentle
ban a » can a, ban _, bab a

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yan wang) OR (qian wang))) OR (yang yang)) ban a gene truong thanh done (saul OR raul) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yan wang) OR (qian wang))) or (yang yang)) ban a gene truong thanh done (saul or raul) ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yan wang) OR (qian wang))) or (yang yang)) ban a gene truong thanh done (saul or raul) ;*.