Perhaps you should try some spelling variations:
nguoi luong » nguoi muong, nguoi thuong, nguoi nung
luong khoa » dung khoa
con duong » van duong
duong hoi » duong loi, dong hoi, duong noi
thi luan » thi lan, thi xuan, thi loan
khoa mo » khoa ma, khoa co, khoa mong
hoi co » moi co

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( phung thi luan van. con duong hoi co ) or ( phung thi luan van. nguoi luong khoa mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung thi luan van. con duong hoi co ) OR ( phung thi luan van. nguoi luong khoa mo )).
• Adding a wildcard symbol may retrieve word variants: (( phung thi luan van. con duong hoi co ) or ( phung thi luan van. nguoi luong khoa mo ))*.