Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
tung tuan » trung tuan, quang tuan, trang tuan
hung tuan » hung tran, quang tuan, trung tuan
cong sang » cong lang, cong vang, cong bang
cong san » cong tac
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - thanh ((tung tuan) OR (hung tuan)) nhung ((cong san) or (cong sang)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh ((tung tuan) OR (hung tuan)) nhung ((cong san) OR (cong sang)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - thanh ((tung tuan) OR (hung tuan)) nhung ((cong san) or (cong sang)) than cau".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh ((tung tuan) OR (hung tuan)) nhung ((cong san) or (cong sang)) than cau*.