Perhaps you should try some spelling variations:
truong thanh » luong thanh, truong tran, tran thanh
wang yuan » wang yuhan, wang yan, wang xuan
fang yuan » wang yuhan, wang yan, meng yuan
yang xin » yang jin, yang lin, zhang xin
chang c » chang _, anhang c, chang ha
yang xi » yang yi, yang jui
c main » 1 main, 2 main, 3 main

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yuan) OR (fang yuan)) chang c main ((((yang xin) or (yang xi))) or (yang di)) truong thanh ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuan) OR (fang yuan)) chang c main ((((yang xin) OR (yang xi))) OR (yang di)) truong thanh ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuan) OR (fang yuan)) chang c main ((((yang xin) or (yang xi))) or (yang di)) truong thanh ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yuan) OR (fang yuan)) chang c main ((((yang xin) or (yang xi))) or (yang di)) truong thanh ;*.