Perhaps you should try some spelling variations:
"nhung thoi quan van. doi tuong hoc moi" » "nhung thi quan van. doi tuong hoc moi", "nhung loi quan van. doi tuong hoc moi", "nhung tri quan van. doi tuong hoc moi", "nhung thoi quen van. doi tuong hoc moi", "nhung thong quan van. doi tuong hoc moi", "nhung thoi quan van. moi truong hoc moi", "nhung thoi quan van. doi song hoc moi", "nhung thoi quan van. doi truong hoc moi", "nhung thoi quan van. doi tuong ho moi", "nhung thoi quan van. doi duong hoc moi", "nhung thoi luan van. doi tuong hoc moi", "nhung thoi quan va. doi tuong hoc moi", "nhung thoi quan luan. doi tuong hoc moi", "nhung thoi quan van. doi tuong hoc noi"
"phung thi yen vang. noi dung hoc mot" » "phung thi yen lang. noi dung hoc mot", "phung thi yen giang. noi dung hoc mot", "phung thi nen van. noi dung hoc mot", "phung thi yen vang. hoc dung hoc mot", "phung thi yen vang. noi dong hoc mot", "phung thi yen vang. noi dung thuoc mot", "phung thi yen vang. noi trung 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 thoi quan van. doi tuong hoc moi") or ("phung thi yen vang. noi dung hoc mot"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi quan van. doi tuong hoc moi") OR ("phung thi yen vang. noi dung hoc mot")).
• Removing quotes may allow a broader search: (( nhung thoi quan van. doi tuong hoc moi ) or ( phung thi yen vang. noi dung hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi quan van. doi tuong hoc moi") or ("phung thi yen vang. noi dung hoc mot"))*.