Perhaps you should try some spelling variations:
"nhung thoi luan van. noi dung hoc mo" » "nhung thi luan van. noi dung hoc mo", "nhung loi luan van. noi dung hoc mo", "nhung tri luan van. noi dung hoc mo", "nhung hoi luan van. noi dung hoc mo", "nhung thai luan van. noi dung hoc mo", "nhung thong luan van. noi dung hoc mo", "nhung thoi luan van. hoc dung hoc mo", "nhung thoi luan van. noi dong hoc mo", "nhung thoi luan van. noi dung thuoc mo", "nhung thoi luan van. noi trung hoc mo", "nhung thoi luan van. noi dung hoc moi", "nhung thoi luan van. noi dung hoc mot", "nhung thoi luan van. noi dung hoc mon"
"phung thi luan van. noi dung uoc mo" » "phung thi luan van. hoc dung uoc mo", "phung thi lan van. noi dung uoc mo", "phung thi xuan van. noi dung uoc mo", "phung thi loan van. noi dung uoc mo", "phung thi luan van. noi dung quoc mo", "phung thi luan van. noi dung coc mo", "phung thi luan van. noi dung thuoc 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 hoc mo") or ("phung thi luan van. noi dung uoc mo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi luan van. noi dung hoc mo") OR ("phung thi luan van. noi dung uoc mo")).
• Removing quotes may allow a broader search: (( nhung thoi luan van. noi dung hoc mo ) or ( phung thi luan van. noi dung uoc mo )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi luan van. noi dung hoc mo") or ("phung thi luan van. noi dung uoc mo"))*.