Perhaps you should try some spelling variations:
phuong dong » phuong dung, phuong hoang, chuong duong
phuong cong » phong cong, phung cong, phuong hoang
chieu tinh » lieu tinh, chau tinh, kieu tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
san toan » van toan, dan toan, manh toan
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) OR (trieu tinh)) - hanh doanh cua ((phuong cong) or (phuong dong)) san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (trieu tinh)) - hanh doanh cua ((phuong cong) OR (phuong dong)) san toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) OR (trieu tinh)) - hanh doanh cua ((phuong cong) or (phuong dong)) san toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) OR (trieu tinh)) - hanh doanh cua ((phuong cong) or (phuong dong)) san toan tap*.