Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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 sang - ((anh tuan) or (canh tranh)) chuc nang cong dan ((than cao) or (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - ((anh tuan) OR (canh tranh)) chuc nang cong dan ((than cao) OR (thai cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - ((anh tuan) or (canh tranh)) chuc nang cong dan ((than cao) or (thai cao))*.