Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh ung » thanh tung, thanh hung, thanh dung
dung cong » dung trong
luan phan » luan van
luan hoan » luan van
ho chieu » theo chieu, hoc thieu, mot chieu
ung su » dung su, rung su, ung xu

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 - thanh ung su dung cong ((luan phan) or (luan hoan)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ung su dung cong ((luan phan) OR (luan hoan)) cac.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ung su dung cong ((luan phan) or (luan hoan)) cac*.