Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tran chau » tranh chap, tran huu
tang van » dang van, hoang van, trong van
cong tan » cong tac, cong san, cong thanh
tang va » trang va, thang va, tang vat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh ((tang va) OR (tang van)) nhung cong tan tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh ((tang va) OR (tang van)) nhung cong tan tran chau*".