Perhaps you should try some spelling variations:
"nhung thoi luan van. noi dung uoc mo" » "nhung thi luan van. noi dung uoc mo", "phung thi luan van. noi dung uoc mo", "nhung loi luan van. noi dung uoc mo", "nhung hoi luan van. noi dung uoc mo", "nhung thai luan van. noi dung uoc mo", "nhung thoi luan van. hoc dung uoc mo", "nhung thoi luan van. noi dung quoc mo", "nhung thoi luan van. noi dung hoc mo", "nhung thoi luan van. noi dung coc mo"
"nhung khoa luan van. tac dung uoc mo" » "chung khoa luan van. tac dung uoc mo", "nhung khia luan van. tac dung uoc mo", "nhung kho luan van. tac dung uoc mo", "nhung khoa luan van. tac dung quoc mo", "nhung khoa luan van. tac dung hoc mo", "nhung khoa luan van. tac dung coc mo", "nhung khoa luan van. sach dung uoc mo", "nhung khoa luan van. xay dung uoc mo", "nhung khoa luan van. tin dung 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. noi dung uoc mo") or ("nhung khoa luan van. tac dung uoc mo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi luan van. noi dung uoc mo") OR ("nhung khoa luan van. tac dung uoc mo")).
• Removing quotes may allow a broader search: (( nhung thoi luan van. noi dung uoc mo ) or ( nhung khoa luan van. tac dung uoc mo )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi luan van. noi dung uoc mo") or ("nhung khoa luan van. tac dung uoc mo"))*.