Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tong cong » trong cong, cong cong, dung cong
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
phan cac » nhan cach, phan dau, phan van
phan lap » phan dau

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 - canh ((tranh va) or (trinh va)) tong cong dan ((phan cac) OR (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh ((tranh va) OR (trinh va)) tong cong dan ((phan cac) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh ((tranh va) or (trinh va)) tong cong dan ((phan cac) OR (phan lap))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((tranh va) or (trinh va)) tong cong dan ((phan cac) OR (phan lap))*.