Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
va phuong » va thuong, cac phuong
va thong » va thuong, he thong, va cong
cong san » cong tac
quan cao » quang cao, quan cau, quan ao

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