Perhaps you should try some spelling variations:
hoc trieu » hoc thieu, hoc dieu, hoc thiet
hang cong » dang cong, hang nong, bang cong
hoc tieu » hoc thieu, hoc dieu, hoc sieu
tran van » luan van
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc trieu) OR (hoc tieu)) tinh - hanh ((tran van) OR (trung tam)) hang cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: ((hoc trieu) or (hoc tieu)) tinh - hanh ((tran van) or (trung tam)) hang cong tac toan cau*.