Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
cong thanh » dong thanh, cong trinh, cong tan
tam huong » tam thuong, tay huong, tam duong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tran tan » tran tuan, tran van, tran thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh trung tam huong ((cong thanh) or (cong tac)) tran tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung tam huong ((cong thanh) OR (cong tac)) tran tan.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trung tam huong ((cong thanh) or (cong tac)) tran tan*.