Perhaps you should try some spelling variations:
thanh trung » thanh tung
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
hoc hieu » hoc thieu, hoc hien, doc hieu
hieu cac » hieu luc, hieu va, hieu van
va duong » van duong, va huong, va dong
va tuong » va thuong, va thong, xa truong
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cac - thanh trung ((va duong) OR (va tuong)) cong san thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu cac - thanh trung ((va duong) OR (va tuong)) cong san thanh lap".
• Adding a wildcard symbol may retrieve word variants: hoc hieu cac - thanh trung ((va duong) OR (va tuong)) cong san thanh lap*.