Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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

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