Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
tuan thong » toan thong, tran thong, tuan phong
hoc thien » hoc hien, hoc thieu, hoc thiet
thanh tra » thanh toan, thanh hoa
tra tuan » tran tuan, tra quan, tri tuan
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: hoc thien hach - thanh tra tuan thong ((cong san) or (cong ty)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh tra tuan thong ((cong san) OR (cong ty)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh tra tuan thong ((cong san) or (cong ty)) toan cau*.