Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh toan
chung cong » nhung cong, chong cong, phung cong
trinh han » trinh quan
luan phan » luan van, luan hoan
ho chinh » hoc chinh, cho chinh, hoa chinh
cong dan » cong san, cong tan, huong dan
dan luan » doanh luan, dung luan, tang luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chinh sach - hanh ((trinh luan) or (trinh han)) chung cong dan luan phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - hanh ((trinh luan) OR (trinh han)) chung cong dan luan phan.
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - hanh ((trinh luan) or (trinh han)) chung cong dan luan phan*.