Perhaps you should try some spelling variations:
"nhung bi quyet vang. biet the vien da xuc" » "nhung bi quyet van. biet the vien da xuc", "nhung bi quyet thang. biet the vien da xuc", "nhung bi quyet dung. biet the vien da xuc", "nhung bai quyet vang. biet the vien da xuc", "nhung bi quyet vang. biet the vien dai xuc", "nhung bi quyet vang. biet the hien dai xuc"
"nhung gi luan van. biet the hien cam xuc" » "nhung bai luan van. biet the hien cam xuc", "nhung gi luan van. biet the hien cac xuc", "nhung gi luan van. biet the hien cau xuc", "nhung gi luan van. biet the hien giam xuc", "nhung gia luan van. biet the hien cam xuc", "nhung li luan van. biet the hien cam xuc"

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: (("nhung bi quyet vang. biet the vien da xuc") OR ("nhung gi luan van. biet the hien cam xuc"))~.
• Removing quotes may allow a broader search: (( nhung bi quyet vang. biet the vien da xuc ) or ( nhung gi luan van. biet the hien cam xuc ))~.
• Adding a wildcard symbol may retrieve word variants: (("nhung bi quyet vang. biet the vien da xuc") or ("nhung gi luan van. biet the hien cam xuc"))*.