Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh trung » manh tung, thanh trung, manh hung
trung tin » trung tinh, trong tin, trang tin
dung cong » dung trong
van thanh » ban thanh, van tuan
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) or (chieu tinh)) - manh trung tin dung cong ((van tan) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - manh trung tin dung cong ((van tan) OR (van thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - manh trung tin dung cong ((van tan) or (van thanh)) cao*.