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

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