Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
hien cong » tien cong, dien cong, chien chong
van duong » van dong, van dung, van phong
van thien » van tien, van chien, van thiet
cong chat » cong nhat, cong cua, cong ha
van hien » van hieu, van tien
cong van » cong vang, cong san, song van
luong » huong

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