Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chieu » ho chieu, theo chu, thi chieu
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
cho nhung » cho chuong, cua nhung, thi nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) xanh - ((hanh dung) OR (hanh dong)) cho nhung cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) xanh - ((hanh dung) OR (hanh dong)) cho nhung cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) xanh - ((hanh dung) OR (hanh dong)) cho nhung cong tan toan tap*.