Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
cao nhung » cho nhung, cam nhung, cao chung
cong manh » cong danh, duong manh, cong thanh
chi sach » chinh sach, chieu sach, co sach
toan ban » van ban
doi chi » doi khi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh truong cao nhung cong manh ((((toan cao) OR (toan tap))) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sach - thanh truong cao nhung cong manh ((((toan cao) OR (toan tap))) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh truong cao nhung cong manh ((((toan cao) OR (toan tap))) or (toan ban))*.