Perhaps you should try some spelling variations:
"nhung thoi luan van. biet the hien cam xuc" » "nhung thi luan van. biet the hien cam xuc", "phung thi luan van. biet the hien cam xuc", "nhung loi luan van. biet the hien cam xuc", "nhung hoi luan van. biet the hien cam xuc", "nhung thai luan van. biet the hien cam xuc", "nhung thoi luan van. biet the hien cac xuc", "nhung thoi luan van. biet the hien cau xuc", "nhung thoi luan van. biet the hien giam xuc"
"nhung phap luan van. biet the hien cam xuc" » "nhung pham luan van. biet the hien cam xuc", "nhung phat luan van. biet the hien cam xuc", "nhung phan luan van. biet the hien cam xuc", "nhung phap luat van. biet the hien cam xuc", "nhung phap hoan van. biet the hien cam xuc", "nhung phap luan van. biet the hien cac xuc", "nhung phap luan van. biet the hien cau xuc", "nhung phap luan van. biet the hien giam xuc"

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. biet the hien cam xuc") or ("nhung phap luan van. biet the hien cam xuc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi luan van. biet the hien cam xuc") OR ("nhung phap luan van. biet the hien cam xuc")).
• Removing quotes may allow a broader search: (( nhung thoi luan van. biet the hien cam xuc ) or ( nhung phap luan van. biet the hien cam xuc )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi luan van. biet the hien cam xuc") or ("nhung phap luan van. biet the hien cam xuc"))*.