Perhaps you should try some spelling variations:
"nhung thoi quen vang. hoat dong co mon" » "nhung thi quen vang. hoat dong co mon", "phung thi quen vang. hoat dong co mon", "nhung loi quen vang. hoat dong co mon", "nhung thoi que van. hoat dong co mon", "nhung thoi que lang. hoat dong co mon", "nhung thoi quen hanh. hoat dong co mon", "nhung thoi quen vang. hoat dong co don", "nhung thoi quen vang. hoat dong co lon", "nhung thoi quen vang. hoat dong co mo", "nhung thoi quen vang. hoat cong co mon"
"nhung hai quan van. boi dung hoc mo" » "nhung khai quan van. boi dung hoc mo", "nhung bai quan van. boi dung hoc mo", "hung hai quan van. boi dung hoc mo", "nhung tac quan van. boi dung hoc mo", "nhung hai luan van. boi dung hoc mo", "nhung hai quan va. boi dung hoc mo", "nhung hai quan luan. boi dung hoc mo", "nhung hai quan van. boi duong hoc mo", "nhung hai quan van. noi dung hoc mo", "nhung hai quan van. hoi dung hoc mo", "nhung hai quan van. boi dong hoc mo", "nhung hai quan van. boi dung thuoc mo", "nhung hai quan van. boi trung hoc mo", "nhung hai quan van. boi dung hoc moi", "nhung hai quan van. boi dung hoc mot", "nhung hai quan van. boi dung 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 hai quan van. boi dung hoc mo") or ("nhung thoi quen vang. hoat dong co mon"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung hai quan van. boi dung hoc mo") OR ("nhung thoi quen vang. hoat dong co mon")).
• Removing quotes may allow a broader search: (( nhung hai quan van. boi dung hoc mo ) or ( nhung thoi quen vang. hoat dong co mon )).
• Adding a wildcard symbol may retrieve word variants: (("nhung hai quan van. boi dung hoc mo") or ("nhung thoi quen vang. hoat dong co mon"))*.