Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh doanh » hang doanh, chinh doanh, kinh doanh
hoc thieu » toc thieu, hoc hien
nang cong » nang song, dang cong, hang cong
bang cong » dang cong, bang song, hang cong
tap toan » tap doan, tap quan, bai toan
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 thieu tinh - ((hanh doanh) or (doanh doanh)) va ((nang cong) or (bang cong)) tap toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((hanh doanh) OR (doanh doanh)) va ((nang cong) OR (bang cong)) tap toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((hanh doanh) or (doanh doanh)) va ((nang cong) or (bang cong)) tap toan cao*.