Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh vi » trinh va, trinh viet, trinh van
trinh ve » trinh he, trinh va, trinh viet
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - hanh ((trinh vi) or (trinh ve)) nhung ((cong dan) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ((trinh vi) OR (trinh ve)) nhung ((cong dan) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ((trinh vi) or (trinh ve)) nhung ((cong dan) or (cong tan)) toan cau*.