Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung van » truong van, trong van, trung tuan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
cong san » cong tac
phan dau » phan tu, hang dau
toan tap » toan ban

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 van) OR (trung va)) dung cong san ((phan dau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung van) OR (trung va)) dung cong san ((phan dau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung van) OR (trung va)) dung cong san ((phan dau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung van) OR (trung va)) dung cong san ((phan dau) or (toan tap))*.