Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
cao phuong » cac phuong, cau phuong, cao phong
trung cao » truong cao, trung cap, trung co
doan phan » doanh phan, toan phan, doanh nhan
dan phan » dan chan, van phan, dam 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 - manh trung cao phuong cong ((dan phan) or (doan phan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh trung cao phuong cong ((dan phan) OR (doan phan)) tap*.