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
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong sat » cong suat, cong san, cong hat
hang dau » hang va
hang tai » hang va, dung tai

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 trung) or (thanh tung)) cua nhung cong sat ((hang dau) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((thanh trung) OR (thanh tung)) cua nhung cong sat ((hang dau) OR (hang tai)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((thanh trung) or (thanh tung)) cua nhung cong sat ((hang dau) or (hang tai))*.