Perhaps you should try some spelling variations:
"nhung gi quet lang. biet the nien giam xuc" » "nhung gi que lang. biet the nien giam xuc", "nhung gi quan lang. biet the nien giam xuc", "nhung gi biet lang. biet the nien giam xuc", "nhung gi quet lang. biet the dien giao xuc", "nhung bai quet lang. biet the nien giam xuc", "nhung gi quet lang. biet the nien gian xu", "nhung gi quet lang. biet the nien gia muc", "nhung gi quet lang. biet the nien cam xuc", "nhung bi quyet lang. biet the nien giam xuc"
"nhung bi luan van. biet the hien tham thuc" » "nhung bi luan van. biet the hien thuan thuc", "nhung bi luan van. biet the phien them thuc", "nhung bi luan van. biet the hien phap thuc", "nhung bi luan van. biet the hien nham thuc", "nhung bi luan van. biet the hien pham thuc", "nhung bi luan van. biet the hien tam thuc", "nhung bai luan van. biet the hien tham thuc", "nhung li luan van. biet the hien tham thuc", "nhung bo luan van. biet the hien tham 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 gi quet lang. biet the nien giam xuc") or ("nhung bi luan van. biet the hien tham thuc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung gi quet lang. biet the nien giam xuc") OR ("nhung bi luan van. biet the hien tham thuc")).
• Removing quotes may allow a broader search: (( nhung gi quet lang. biet the nien giam xuc ) or ( nhung bi luan van. biet the hien tham thuc )).
• Adding a wildcard symbol may retrieve word variants: (("nhung gi quet lang. biet the nien giam xuc") or ("nhung bi luan van. biet the hien tham thuc"))*.