Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
thuat cao » thuat co, thuat bao, thuat cam
cong san » cong tac
than cao » toan cao, thai cao, 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 chieu sach - thanh trung tuan dang cong san ((than cao) or (thuat cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung tuan dang cong san ((than cao) OR (thuat cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung tuan dang cong san ((than cao) or (thuat cao))*.