Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tang » trung thang, trong tang, trung thanh
tang dung » tang duong, dang dung, tan dung
theo cuu » theo chu, khao cuu, thao cua
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cuu tinh - thanh trung tang dung ((cong tan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cuu tinh - thanh trung tang dung ((cong tan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo cuu tinh - thanh trung tang dung ((cong tan) or (cong san)) toan cau*.