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", "nhung loi luan van. biet the hien cam xuc", "nhung tri 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 giam xuc", "nhung thoi luan van. biet the hien tham xuc"
"phung thi xuan van. biet the hien cau truc" » "phung thi xa van. biet the hien cau truc", "phung thi lan van. biet the hien cau truc", "phung thi quan van. biet the hien cau truc", "phung thi xuan can. biet the hien cau truc", "phung thi xuan tan. biet the hien cau truc", "phung thi xuan van. biet the khien cau truc", "phung thi xuan van. biet the thien cau truc", "phung thi xuan van. biet the hien cac truc", "phung thi xuan van. biet the hien cau thuc"

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