Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
tung tuan » trung tuan, quang tuan, trang tuan
hung tuan » hung tran, quang tuan, trung tuan
hung cong » nhung cong, hung cuong, phung cong
cong tac » cong ty
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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 tieu xanh - thanh ((tung tuan) OR (hung tuan)) hung cong tac ((than cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh ((tung tuan) or (hung tuan)) hung cong tac ((than cau) OR (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((tung tuan) or (hung tuan)) hung cong tac ((than cau) OR (toan cau))*.