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

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 (tran 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 (tran thanh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh ((tran tuan) OR (tran xuan)) dong cong san ((tran tan) or (tran thanh))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh ((tran tuan) OR (tran xuan)) dong cong san ((tran tan) or (tran thanh))*.