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