Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thang cua » thong cua, tang cua, thang mua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
than cua » nhan cua, thai cua, ban cua
hang cua » mang cua, hang ca, huong cua
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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 - hanh ((((thang cua) or (than cua))) or (hang cua)) dung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((((thang cua) OR (than cua))) OR (hang cua)) dung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((((thang cua) or (than cua))) or (hang cua)) dung cong van toan cao*.