Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
nhat luong » chat luong, nhat huong, nhat thuong
suat luong » suat huong, chat luong, suat thong
cong nhat » cong nhan, cong ha, dang nhat
cong suat » nang suat, cong san, cong cua
luan han » luan hoan, luan phan, luan san
van tai » von tai, van tuan
han tai » hang tai, nhan tai, toan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( cong trinh luan van tai cong nhat luong ) or ( cong trinh luan han tai cong suat luong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh luan van tai cong nhat luong ) OR ( cong trinh luan han tai cong suat luong )).
• Adding a wildcard symbol may retrieve word variants: (( cong trinh luan van tai cong nhat luong ) or ( cong trinh luan han tai cong suat luong ))*.