Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoi tieu » hoc tieu, hoi hieu, hoi tiep
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ho hieu » ho chieu, hoi hieu, nho hieu
ap dung » van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho hieu) or (hoi tieu)) lang - thanh tung ((ap dung) OR (xay dung)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (hoi tieu)) lang - thanh tung ((ap dung) OR (xay dung)) cong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (hoi tieu)) lang - thanh tung ((ap dung) OR (xay dung)) cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (hoi tieu)) lang - thanh tung ((ap dung) OR (xay dung)) cong dan than cau*.