Perhaps you should try some spelling variations:
"nhung thoi quan luan. hoi dong hoc mot" » "nhung thi quan luan. hoi dong hoc mot", "phung thi quan luan. hoi dong hoc mot", "nhung loi quan luan. hoi dong hoc mot", "nhung thoi quen luan. hoi dong hoc mot", "nhung thong quan luan. hoi dong hoc mot", "nhung thoi quan luan. hop dong hoc mot", "nhung thoi quan luan. hoat dong hoc mot", "nhung thoi quan luan. ha dong hoc mot", "nhung thoi quan luan. hoi dong co mot", "nhung thoi quan luan. hoi dong luc mot", "nhung thoi quan luan. hoi dong hoc moi"
"cong trinh que quang. noi dung thuoc mo" » "cong trinh qua quang. noi dung thuoc mo", "cong trinh quan quang. noi dung thuoc mo", "cong trinh quoc quang. noi dung thuoc mo", "cong trinh hue quang. noi dung thuoc mo", "cong trinh que quang. hoc dung thuoc mo", "cong trinh que quang. noi dung thuoc moi", "cong trinh que quang. noi dung thuoc ma", "cong trinh que quang. noi dung thuoc bo"

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: (("cong trinh que quang. noi dung thuoc mo") or ("nhung thoi quan luan. hoi dong hoc mot"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cong trinh que quang. noi dung thuoc mo") OR ("nhung thoi quan luan. hoi dong hoc mot")).
• Removing quotes may allow a broader search: (( cong trinh que quang. noi dung thuoc mo ) or ( nhung thoi quan luan. hoi dong hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (("cong trinh que quang. noi dung thuoc mo") or ("nhung thoi quan luan. hoi dong hoc mot"))*.