Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cua thuong » cua phuong, ca thuong, cua huong
cua truong » cua trung, xuan truong, cac truong
than phan » thanh phan, thanh pham, thanh nhan
toan phan » thanh phan, toan ban, hoa phan

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 - canh tranh ((cua thuong) OR (cua truong)) cong ((than phan) or (toan phan)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh ((cua thuong) OR (cua truong)) cong ((than phan) OR (toan phan)) dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - canh tranh ((cua thuong) OR (cua truong)) cong ((than phan) or (toan phan)) dau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh ((cua thuong) OR (cua truong)) cong ((than phan) or (toan phan)) dau*.