Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
truong va » truong cao, truong dao, luong va
chi xanh » chi anh, chi danh, chi hanh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((truong va) or (truong dai)) nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh ((truong va) OR (truong dai)) nhung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh ((truong va) or (truong dai)) nhung cong tan toan ban*.