Perhaps you should try some spelling variations:
"phung thi luan van. con duong khoa mo" » "phung thi luan van. con dung khoa mo", "phung thi luan van. con luong khoa mo", "phung thi luan van. van duong khoa mo", "phung thi lan van. con duong khoa mo", "phung thi xuan van. con duong khoa mo", "phung thi loan van. con duong khoa mo", "phung thi luan van. con duong khoa ma", "phung thi luan van. con duong khoa co", "phung thi luan van. con duong khoa mong", "phuong thi luan van. con duong khoa mo", "chung thi luan van. con duong khoa mo", "phong thi luan van. con duong khoa mo"
"nhung thoi quen vang. nuoi duong loi noi" » "nhung thi quen vang. nuoi duong loi noi", "nhung loi quen vang. nuoi duong loi noi", "nhung tri quen vang. nuoi duong loi noi", "nhung thoi quen vang. nguoi muong loi noi", "nhung thoi quen vang. noi dung loi noi", "nhung thoi quen vang. boi duong loi noi", "nhung thoi quan van. nuoi duong loi noi", "nhung thoi que van. nuoi duong loi noi", "nhung thoi que lang. nuoi duong loi noi", "nhung thoi quen vang. nuoi duong co noi", "nhung thoi quen vang. nuoi duong thi noi"

Try widening your search to All Fields.

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 khoa mo") or ("nhung thoi quen vang. nuoi duong loi noi"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("phung thi luan van. con duong khoa mo") OR ("nhung thoi quen vang. nuoi duong loi noi")).
• Removing quotes may allow a broader search: (( phung thi luan van. con duong khoa mo ) or ( nhung thoi quen vang. nuoi duong loi noi )).
• Adding a wildcard symbol may retrieve word variants: (("phung thi luan van. con duong khoa mo") or ("nhung thoi quen vang. nuoi duong loi noi"))*.