Perhaps you should try some spelling variations:
nhan thuong » phan thuong, han thuong, chan thuong
trinh luan » trinh luat, trinh quan, trinh toan
cong chat » cong nhat, cong cua, cong ha
trinh han » trinh quan
cong nhan » cong nhat, cong thanh, cong san
van tai » von tai, van tuan
han van » phan van, nhan van, hanh van

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 chat luong ) or ( cong trinh han van tai cong nhan thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh luan van tai cong chat luong ) OR ( cong trinh han van tai cong nhan thuong )).
• Adding a wildcard symbol may retrieve word variants: (( cong trinh luan van tai cong chat luong ) or ( cong trinh han van tai cong nhan thuong ))*.