Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh luan » trinh luan, trinh luat, doanh luan
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
ptoan tap » toan tai, phan tap, toan lap
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
toan tap » toan 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 - canh tranh luan nang cong dan ((ptoan tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh tranh luan nang cong dan ((ptoan tap) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tranh luan nang cong dan ((ptoan tap) or (toan tap))*.