Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong chuc » cong cua
cong thuc » cong tac
dung cong » dung trong
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
cong cu » chung cu

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 ((((cong chuc) or (cong thuc))) or (cong cu)) dung cong van thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((((cong chuc) OR (cong thuc))) OR (cong cu)) dung cong van thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((((cong chuc) or (cong thuc))) or (cong cu)) dung cong van thanh cau*.