Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
truong ca » truong cao, trong ca, truong dai
truong va » truong dai, truong cao, truong dao
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cau » phan cau, can cau, chinh cau

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 - thanh ((truong ca) or (truong va)) nhung cong tan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((truong ca) OR (truong va)) nhung cong tan chan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((truong ca) or (truong va)) nhung cong tan chan cau*.