Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tran tuan » tran quang, tran thanh, tranh luan
tran xuan » tran quang, tran van
dong cong » duong cong, dung cong, dang cong
van thanh » ban thanh, van tuan
cong san » cong tac
tran tan » tran van, tran thanh, trang tuan

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 sach - thanh ((tran tuan) or (tran xuan)) dong cong san ((tran tan) or (van thanh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh ((tran tuan) OR (tran xuan)) dong cong san ((tran tan) OR (van thanh)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh ((tran tuan) or (tran xuan)) dong cong san ((tran tan) or (van thanh))*.