Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
hang cong » dang cong, hang nong, bang cong
toan cao » toan ban
toan tap » toan 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 chieu tinh - hanh doanh luan ((nhung cong) OR (hang cong)) tan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh doanh luan ((nhung cong) OR (hang cong)) tan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh doanh luan ((nhung cong) OR (hang cong)) tan ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh doanh luan ((nhung cong) OR (hang cong)) tan ((toan cao) or (toan tap))*.