Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
hang taiu » hang dau, han tai, hang hai
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
hang tai » hang va, dung tai

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 trung thanh dung ((cong ban) OR (cong tan)) ((hang taiu) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung thanh dung ((cong ban) OR (cong tan)) ((hang taiu) OR (hang tai))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh trung thanh dung ((cong ban) OR (cong tan)) ((hang taiu) or (hang tai))*".