Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
truong va » truong dai, truong cao, truong dao
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » trung ha, trung tam, trung cap
trang va » tran van, hang va
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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