Perhaps you should try some spelling variations:
"nhung loi luan van. noi hoang duoc hoi" » "nhung loi luan van. noi hoang quoc hoi", "nhung loi luan van. noi hoang duc hoi", "nhung loi luan van. noi hoang phuoc hoi", "nhung bai luan van. noi hoang duoc hoi", "nhung bi luan van. noi hoang duoc hoi", "nhung bo luan van. noi hoang duoc hoi", "nhung loi luan van. ngoc hoang duoc hoi", "nhung loi luan van. noi cong duoc hoi", "nhung loi luan van. noi khong duoc hoi", "nhung li luan van. noi hoang duoc hoi", "nhung hoi luan van. noi hoang duoc hoi", "nhung loi lan van. noi hoang duoc hoi", "nhung loi luan van. noi hoang duoc hoc", "nhung loi luan van. noi hoang duoc si"
"nhung gi luan van. noi dung uoc mo" » "nhung bi luan van. noi dung uoc mo", "nhung bai luan van. noi dung uoc mo", "nhung gi luan van. hoc dung uoc mo", "nhung gi luan van. noi dung quoc mo", "nhung gi luan van. noi dung hoc mo", "nhung gi luan van. noi dung coc mo", "nhung gia luan van. noi dung uoc mo", "nhung li luan van. noi dung uoc mo"

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 gi luan van. noi dung uoc mo") or ("nhung loi luan van. noi hoang duoc hoi"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung gi luan van. noi dung uoc mo") OR ("nhung loi luan van. noi hoang duoc hoi")).
• Removing quotes may allow a broader search: (( nhung gi luan van. noi dung uoc mo ) or ( nhung loi luan van. noi hoang duoc hoi )).
• Adding a wildcard symbol may retrieve word variants: (("nhung gi luan van. noi dung uoc mo") or ("nhung loi luan van. noi hoang duoc hoi"))*.