Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh van » tran van, trinh van, thanh van
dung cong » dung trong
cong than » cong thanh, cong thang, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » trang va, trinh va, thanh va
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau

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