Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tac nhung » tay nhung, tham nhung, thai nhung
cong tacn » cong tan, cong san, cong dan
chi xanh » chi anh, chi danh, chi hanh
cong tac » cong ty
toan cao » toan tap
toan ban » van 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 xanh - thanh cong tac nhung cong tacn ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh cong tac nhung cong tacn ((toan cao) OR (toan ban))*.