Perhaps you should try some spelling variations:
truong thanh » luong thanh, truong tran, tran thanh
luong than » luong thanh, long thanh
wang jan » wang yan, wang dan, wang jun
wang ban » wang yan, wang dan, wang yang
done sau » done so, done hu, wong sau
a gene » a genre, a gender, a gentle
done a » done _, zone a, done 5

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian ((wang jan) or (wang ban)) a gene ((luong than) OR (truong thanh)) ((done sau) or (done a)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian ((wang jan) OR (wang ban)) a gene ((luong than) OR (truong thanh)) ((done sau) OR (done a)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian ((wang jan) or (wang ban)) a gene ((luong than) OR (truong thanh)) ((done sau) or (done a)) ;".
• Adding a wildcard symbol may retrieve word variants: qian ((wang jan) or (wang ban)) a gene ((luong than) OR (truong thanh)) ((done sau) or (done a)) ;*.