Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
dang cong » dung cong
cong san » cong tac
san van » tan van, luan van, tran van

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 truong) or (thanh tung)) cao dang cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((thanh truong) OR (thanh tung)) cao dang cong san van ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((thanh truong) or (thanh tung)) cao dang cong san van ban*.