Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
chi xanh » chi anh, chi danh, chi hanh
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu
hang dau » hang va, hang tai
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 xanh - canh tranh cua nhung cong tan ((phan dau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh tranh cua nhung cong tan ((phan dau) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh tranh cua nhung cong tan ((phan dau) or (hang dau))*.