Perhaps you should try some spelling variations:
thinh duong » trinh duong, thanh duong, thinh vuong
quang thinh » quang thanh, quang chinh, quang ninh
thanh tran » thanh trang, thanh toan, thanh tra
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
duong van » duong va, luong va, dang van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu manh) or (hieu lang)) - thanh tran quang thinh duong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (hieu lang)) - thanh tran quang thinh duong van toan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) or (hieu lang)) - thanh tran quang thinh duong van toan ban*.