Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, theo chieu
theo chu » theo chieu, cho chu, chao chu
tinh ban » tinh bang, trinh ban, tinh bac
ban quan » van quan
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ((thi chieu) or (theo chu)) xanh - tinh ban quan nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (theo chu)) xanh - tinh ban quan nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (theo chu)) xanh - tinh ban quan nhung cong tac toan cau*.