Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
tranh suat » tranh cua, tranh luan
suat dung » thuat dung, xuat duong, suat huong
tran chau » tranh chap, tran huu
chi xanh » chi anh, chi danh, chi hanh
cong tan » cong tac, cong san, cong ty
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 suat dung ((cong tan) or (cong thanh)) tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh tranh suat dung ((cong tan) OR (cong thanh)) tran chau.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh tranh suat dung ((cong tan) or (cong thanh)) tran chau*.