Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh tranh » hanh trinh, hanh trang, lanh tranh
hieu tinh » chieu tinh, lieu tinh, kieu tinh
va phuong » va thuong, cac phuong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
co hieu » cao hieu, doc hieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: co hieu tinh - ((hanh tranh) or (canh tranh)) va phuong cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co hieu tinh - ((hanh tranh) OR (canh tranh)) va phuong cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: co hieu tinh - ((hanh tranh) or (canh tranh)) va phuong cong tan than cap*.