Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
doanh luan » doanh nhan
hoc thien » hoc hien, hoc thiet, hoc tien
hoc thieu » toc thieu, hoc hien
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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) or (hoc thieu)) thanh - doanh doanh luan nang cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thieu)) thanh - doanh doanh luan nang cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) or (hoc thieu)) thanh - doanh doanh luan nang cong tac ((toan cau) or (toan ban))*.