Perhaps you should try some spelling variations:
"nhung khuc quy van. boi duong thuoc ma" » "nhung khuc quy van. boi dung thuoc ma", "nhung khuc quy van. boi dong thuoc ma", "nhung khuc quy van. boi duong phuoc ma", "nhung khuc quy van. hai duong thuoc ma", "nhung khuc quy van. doi tuong thuoc ma", "nhung khuc quy van. con duong thuoc ma", "nhung hoc quy van. boi duong thuoc ma", "nhung duc quy van. boi duong thuoc ma", "nhung kho quy van. boi duong thuoc ma", "nhung khuc quy van. boi duong hoc ma", "nhung khuc quy van. boi duong duoc ma", "nhung khuc duy van. boi duong thuoc ma", "nhung khuc qua van. boi duong thuoc ma", "nhung khuc quyet van. boi duong thuoc ma"
"nhung thi quan luan. van duong hoc mot" » "nhung thoi quan luan. van duong hoc mot", "phung thi quan luan. van duong hoc mot", "nhung tri quan luan. van duong hoc mot", "nhung thi quan luan. van dong hoc mot", "nhung thi quan luan. van dung hoc mot", "nhung thi quan luan. van phong hoc mot", "nhung thi quan luan. van duong hoi mot", "nhung thi xuan luan. van duong hoc mot", "nhung thi luan luan. van duong hoc mot", "nhung thi quan luan. van duong hoc moi", "nhung thi quan lan. van duong hoc mot"

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 khuc quy van. boi duong thuoc ma") or ("nhung thi quan luan. van duong hoc mot"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung khuc quy van. boi duong thuoc ma") OR ("nhung thi quan luan. van duong hoc mot")).
• Removing quotes may allow a broader search: (( nhung khuc quy van. boi duong thuoc ma ) or ( nhung thi quan luan. van duong hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (("nhung khuc quy van. boi duong thuoc ma") or ("nhung thi quan luan. van duong hoc mot"))*.