Perhaps you should try some spelling variations:
"nhung thoi luan van. hoc dung hoc moi" » "nhung thi luan van. hoc dung hoc moi", "phung thi luan van. hoc dung hoc moi", "nhung loi luan van. hoc dung hoc moi", "nhung hoi luan van. hoc dung hoc moi", "nhung thai luan van. hoc dung hoc moi", "nhung thoi luan van. hoc ung hoc moi", "nhung thoi luan van. hoc dan hoc moi", "nhung thoi luan van. tac dung hoc moi", "nhung thoi luan van. hoc dong hoc moi", "nhung thoi luan van. hoc dung thuoc moi", "nhung thoi luan van. hoc trung hoc moi", "nhung thoi luan van. hoc dung hoc noi"
"nhung thoi qua van. doi tuong uoc mo" » "nhung thi qua van. doi tuong uoc mo", "phung thi qua van. doi tuong uoc mo", "nhung loi qua van. doi tuong uoc mo", "nhung thoi qua van. moi truong uoc mo", "nhung thoi qua van. doi song uoc mo", "nhung thoi qua van. doi huong uoc mo", "nhung thoi qua van. doi tuong hoc mo", "nhung thoi qua van. doi truong quoc mo", "nhung hoi qua van. doi tuong uoc mo", "nhung thoi rua van. doi tuong uoc mo", "nhung thoi xua van. doi tuong uoc mo", "nhung thoi quan van. doi tuong uoc mo", "nhung thoi qua ban. doi tuong uoc mo", "nhung thoi qua san. doi tuong uoc mo"

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: (("nhung thoi luan van. hoc dung hoc moi") or ("nhung thoi qua van. doi tuong uoc mo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi luan van. hoc dung hoc moi") OR ("nhung thoi qua van. doi tuong uoc mo")).
• Removing quotes may allow a broader search: (( nhung thoi luan van. hoc dung hoc moi ) or ( nhung thoi qua van. doi tuong uoc mo )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi luan van. hoc dung hoc moi") or ("nhung thoi qua van. doi tuong uoc mo"))*.