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 ban, toan tap, toan tai
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) OR (toan cao))~.
• 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) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo cuu tinh - thanh trung tang dung ((cong tan) or (cong san)) ((toan cau) OR (toan cao))*".