Perhaps you should try some spelling variations:
"chung thi luan van. biet the hien cam xuc" » "phung thi luan van. biet the hien cam xuc", "chung chi luan van. biet the hien cam xuc", "phuong thi luan van. biet the hien cam xuc", "chung thi lan van. biet the hien cam xuc", "chung thi loan van. biet the hien cam xuc", "chung thi thuan van. biet the hien cam xuc", "chung thi luan van. biet the hien cac xuc", "chung thi luan van. biet the hien cau xuc", "chung thi luan van. biet the hien giam xuc"
"nhung thi xuan can. biet the hieu cac nuoc" » "nhung thoi xuan can. biet the hieu cac nuoc", "phung thi xuan can. biet the hieu cac nuoc", "nhung tri xuan can. biet the hieu cac nuoc", "nhung thi xa can. biet the hieu cac nuoc", "nhung thi lan can. biet the hieu cac nuoc", "nhung thi xuan cang. biet the hieu cac nuoc", "nhung thi xuan tan. biet the hieu cac nuoc", "nhung thi xuan chanh. biet the hieu cac nuoc", "nhung thi xuan can. biet the hieu luc nuoc", "nhung thi xuan can. biet the hieu va nuoc", "nhung thi xuan can. biet the hieu van nuoc", "nhung thi xuan can. biet the hieu cap nuoc", "nhung thi xuan can. biet the hieu hoc nuoc", "nhung thi xuan can. biet the hieu dat nuoc"

You may be able to get more results by adjusting your search query.

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