Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
va phuong » va thuong, cac phuong
chi tinh » chai tinh, chi minh, chi binh
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tinh - canh tranh va phuong cong tan ((von tai) or (((toan cao) or (toan tap))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tinh - canh tranh va phuong cong tan ((von tai) OR (((toan cao) OR (toan tap)))).
• Adding a wildcard symbol may retrieve word variants: doi chi tinh - canh tranh va phuong cong tan ((von tai) or (((toan cao) or (toan tap))))*.