Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung song » nhung cong, nhung bong, nhung chong
doi chieu » doc hieu, doi chi, ho chieu
song van » hoang van, trong van, duong van
sinh va » sinh vat, tinh va, dinh van
ban cau » bang cau, ban can, van cau
ban cua » ban quan

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 ((tinh chat) or (sinh va)) nhung song van ((ban cau) or (ban cua))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((tinh chat) OR (sinh va)) nhung song van ((ban cau) OR (ban cua)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((tinh chat) or (sinh va)) nhung song van ((ban cau) or (ban cua))*.