Perhaps you should try some spelling variations:
phuong cong » phong cong, phung cong, phuong hoang
phuong dong » phuong dung, phuong hoang, chuong duong
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
tac tran » tan tran, tac trai, tac tren
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (hoc thieu)) sang - canh tranh cua ((phuong cong) OR (phuong dong)) tac tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) sang - canh tranh cua ((phuong cong) OR (phuong dong)) tac tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (hoc thieu)) sang - canh tranh cua ((phuong cong) OR (phuong dong)) tac tran cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) sang - canh tranh cua ((phuong cong) OR (phuong dong)) tac tran cao*.