Perhaps you should try some spelling variations:
thanh tung » thanh cong
lieu tinh » trieu tinh, diep tinh
bien tinh » bi tinh, yen tinh, diep tinh
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan ban » van ban

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: co ((lieu tinh) OR (bien tinh)) - thanh tung cua nhung ((cong tan) OR (cong san)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co ((lieu tinh) OR (bien tinh)) - thanh tung cua nhung ((cong tan) or (cong san)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: co ((lieu tinh) OR (bien tinh)) - thanh tung cua nhung ((cong tan) or (cong san)) toan ban*.