Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
phuong cong » phuong dong, phung cong, phuong hoang
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
phong cong » phong chong, thong cong, chong cong
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: theo chieu sach - thanh truong dai ((phuong cong) OR (phong cong)) ((dan than) or (tinh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh truong dai ((phuong cong) OR (phong cong)) ((dan than) OR (tinh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh truong dai ((phuong cong) OR (phong cong)) ((dan than) or (tinh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh truong dai ((phuong cong) OR (phong cong)) ((dan than) or (tinh toan)) cao*.