Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
trong van » trong cac
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap
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: ho chieu sach - canh ((tranh cua) or (ban cua)) dung trong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh ((tranh cua) OR (ban cua)) dung trong van toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh ((tranh cua) or (ban cua)) dung trong van toan cau*.