Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh tran » canh tranh, hanh trang, banh trang
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van hang » van khang, van hoang, van thang
dan chan » dan gian, dan ca, van chat
van phan » van phong, van thanh, luan phan

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 - canh tran van hang cong ((dan chan) or (van phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh tran van hang cong ((dan chan) OR (van phan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tran van hang cong ((dan chan) or (van phan)) cau*.