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 tan » trung tuan, trung tran, trung tang
tan dung » tran dung, tin dung, van dung
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
toan ban » van ban

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 tan dung ((cong tap) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung tan dung ((cong tap) OR (cong tac)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung tan dung ((cong tap) or (cong tac)) toan ban*.