Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thien » hoc hien, hoc thieu, hoc thiet
doanh cua » doanh luan
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan 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 - canh doanh cua ((hang cong) or (dang cong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - canh doanh cua ((hang cong) OR (dang cong)) dan than tap*.