Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
hieu sach » hieu cach, dien sach, hieu cac
cao nhung » cho nhung, cam nhung, cao chung
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) OR (chieu sach)) - thanh truong cao nhung cong ((xuan toan) or (dan than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (chieu sach)) - thanh truong cao nhung cong ((xuan toan) OR (dan than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu sach) OR (chieu sach)) - thanh truong cao nhung cong ((xuan toan) or (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) OR (chieu sach)) - thanh truong cao nhung cong ((xuan toan) or (dan than)) cao*.