Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh vat » trinh van, trinh luat, trinh han
hang cong » dang cong, hang nong, bang cong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
ho chieu » theo chieu, hoc thieu, doi chieu
phan cac » nhan cach, phan dau, phan lap

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 vat) or (sinh vat)) hang cong luan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh vat) OR (sinh vat)) hang cong luan phan cac.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh vat) or (sinh vat)) hang cong luan phan cac*.