Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
tuan nhung » tuan hung, thuat nhung, tranh nhung
quan nhung » qua nhung, cua nhung, luan chung
doi chieu » doc hieu, doi chi, ho chieu
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran van » luan van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh ((tuan nhung) or (quan nhung)) cong tac tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh ((tuan nhung) OR (quan nhung)) cong tac tran van*.