Perhaps you should try some spelling variations:
"nhung thoi luan van. boi dung hoc cong" » "nhung thi luan van. boi dung hoc cong", "phung thi luan van. boi dung hoc cong", "nhung loi luan van. boi dung hoc cong", "nhung hoi luan van. boi dung hoc cong", "nhung thai luan van. boi dung hoc cong", "nhung thoi luan van. boi duong hoc cong", "nhung thoi luan van. noi dung hoc cong", "nhung thoi luan van. hoi dung hoc cong", "nhung thoi luan van. boi dung thuoc cong", "nhung thoi luan van. boi trung hoc cong", "nhung thoi luan van. boi dung khoa cong", "nhung thoi luan van. boi dung hoc co", "nhung thoi luan van. boi dung cac cong", "nhung thoi luan van. boi dung hoc dung"
"nhung kho quyet van. bi dong hoc mo" » "nhung nho quyet van. bi dong hoc mo", "nhung khuc quyet van. bi dong hoc mo", "nhung kham quyet van. bi dong hoc mo", "nhung theo quyet van. bi dong hoc mo", "nhung khai quyet van. bi dong hoc mo", "nhung khi quyen van. bi dong hoc mo", "nhung kho quyet van. bi dong co mo", "nhung kho quyet van. bi dong luc mo", "nhung kho quyet van. bi cong hoc mo", "nhung kho quyet van. di dong hoc mo", "nhung kho quyet van. bien dong hoc mo", "nhung kho quyet van. bi dong hoc moi", "nhung kho quyet van. bi dong hoc mot", "nhung kho quyet van. bi dong hoc mon"

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 kho quyet van. bi dong hoc mo") or ("nhung thoi luan van. boi dung hoc cong"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung kho quyet van. bi dong hoc mo") OR ("nhung thoi luan van. boi dung hoc cong")).
• Removing quotes may allow a broader search: (( nhung kho quyet van. bi dong hoc mo ) or ( nhung thoi luan van. boi dung hoc cong )).
• Adding a wildcard symbol may retrieve word variants: (("nhung kho quyet van. bi dong hoc mo") or ("nhung thoi luan van. boi dung hoc cong"))*.