Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
nganh cong » nhanh chong, thanh cong
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
cac nganh » hoc nganh
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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 - ((hanh tang) or (hanh mang)) cac nganh cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - ((hanh tang) OR (hanh mang)) cac nganh cong dan van ban*.