Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luan chung » luan chinh
trinh toan » tinh toan, thanh toan, trinh han
hanh mang » nhanh mang, hanh trang, nhanh lang
luan hung » lan hung, luan ung, tuan hung
ho chieu » theo chieu, hoc thieu, doi chieu
toan ban » van ban

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 mang ((luan hung) or (luan chung)) cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh mang ((luan hung) OR (luan chung)) cong trinh toan ban*.