Perhaps you should try some spelling variations:
"nhung thoi luan van. noi dung cho mot" » "nhung thi luan van. noi dung cho mot", "phung thi luan van. noi dung cho mot", "nhung loi luan van. noi dung cho mot", "nhung hoi luan van. noi dung cho mot", "nhung thai luan van. noi dung cho mot", "nhung thoi luan van. hoc dung cho mot", "nhung thoi luan van. noi dung cho moi"
"nhung gi quan luan. noi dung uoc mo" » "nhung bi quan luan. noi dung uoc mo", "nhung bai quan luan. noi dung uoc mo", "nhung gi quan luan. hoc dung uoc mo", "nhung gi quan luan. noi dung quoc mo", "nhung gi quan luan. noi dung hoc mo", "nhung gi quan luan. noi dung coc mo", "nhung vi quan luan. noi dung uoc mo", "nhung gai quang luan. noi dung uoc mo", "nhung giac quan luan. noi 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 gi quan luan. noi dung uoc mo") or ("nhung thoi luan van. noi dung cho mot"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung gi quan luan. noi dung uoc mo") OR ("nhung thoi luan van. noi dung cho mot")).
• Removing quotes may allow a broader search: (( nhung gi quan luan. noi dung uoc mo ) or ( nhung thoi luan van. noi dung cho mot )).
• Adding a wildcard symbol may retrieve word variants: (("nhung gi quan luan. noi dung uoc mo") or ("nhung thoi luan van. noi dung cho mot"))*.