Perhaps you should try some spelling variations:
trinh cuong » trinh chuong, trinh cong, trinh duong
canh trinh » canh tranh, hanh trinh, canh tinh
cuong dung » tuong duong, ung dung, thong dung
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
cong luan » tong luan, cong tuan, dong luan
ho chieu » theo chieu, hoc thieu, mot chieu
van cau » van dau, van hau, van chat

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) or (ho chieu)) xanh - canh trinh cuong dung cong luan van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) xanh - canh trinh cuong dung cong luan van cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) xanh - canh trinh cuong dung cong luan van cau*.