Perhaps you should try some spelling variations:
"nhung thoi luan van. hoc dung uoc mo" » "nhung thi luan van. hoc dung uoc mo", "nhung loi luan van. hoc dung uoc mo", "nhung tri luan van. hoc dung uoc mo", "nhung hoi luan van. hoc dung uoc mo", "nhung thai luan van. hoc dung uoc mo", "nhung thoi luan van. hoc ung uoc mo", "nhung thoi luan van. hoc dan uoc mo", "nhung thoi luan van. tac dung uoc mo", "nhung thoi luan van. hoc dung quoc mo", "nhung thoi luan van. hoc dung hoc mo", "nhung thoi luan van. hoc dung coc mo"
"phung thi quan van. hoc dung uoc mo" » "phung thi xuan van. hoc dung uoc mo", "phung tri quan van. hoc dung uoc mo", "phung thi luan van. hoc dung uoc mo", "phung thi quan va. hoc dung uoc mo", "phung thi quan luan. hoc dung uoc mo", "phung thi quan doan. hoc dung uoc mo", "phung thi quan van. hoc ung uoc mo", "phung thi quan van. hoc dan uoc mo", "phung thi quan van. tac dung uoc mo", "phung thi quan van. hoc dung quoc mo", "phung thi quan van. hoc dung hoc mo", "phung thi quan van. hoc dung coc mo", "phuong thi quan van. hoc dung uoc mo", "chung thi quan van. hoc dung uoc mo", "phong thi quan van. hoc 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: (("phung thi quan van. hoc dung uoc mo") or ("nhung thoi luan van. hoc dung uoc mo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("phung thi quan van. hoc dung uoc mo") OR ("nhung thoi luan van. hoc dung uoc mo")).
• Removing quotes may allow a broader search: (( phung thi quan van. hoc dung uoc mo ) or ( nhung thoi luan van. hoc dung uoc mo )).
• Adding a wildcard symbol may retrieve word variants: (("phung thi quan van. hoc dung uoc mo") or ("nhung thoi luan van. hoc dung uoc mo"))*.