Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trinh cua » trinh luat, trinh quan, trinh luan
ban thanh » ban hanh, ban hang
ho chieu » theo chieu, hoc thieu, doi chieu
tinh cua » sinh cua, tinh chat, tranh cua
dan toan » van toan, dan than, manh toan

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 ((trinh cua) or (tinh cua)) nhung cong ((dan toan) or (ban thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung cong ((dan toan) OR (ban thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh cua) or (tinh cua)) nhung cong ((dan toan) or (ban thanh)) cao*.