Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
tuong cong » truong cong, trong cong, tong cong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ha » trung hoc, trung tam, trung cap
ha tuong » va tuong, ba tuong, sa tuong
dan toan » van toan, dan than, manh toan
van tan » van tuan, van ban, van tai

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 ha tuong cong ((dan toan) or (van tan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung ha tuong cong ((dan toan) OR (van tan)) tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trung ha tuong cong ((dan toan) or (van tan)) tap*.