Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
than cau » phan cau, thanh chau, thanh mau
toan cau » toan cao, toan ban, toan tap
than cap » khan cap, thanh lap, thanh cac

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 xanh - canh tranh va nhung cong tan ((((than cau) OR (toan cau))) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - canh tranh va nhung cong tan ((((than cau) OR (toan cau))) or (than cap))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh tranh va nhung cong tan ((((than cau) OR (toan cau))) or (than cap))*.