Perhaps you should try some spelling variations:
"nhung thoi gian dan. noi dung hoc mo" » "nhung thi gian dan. noi dung hoc mo", "nhung loi gian dan. noi dung hoc mo", "nhung tri gian dan. noi dung hoc mo", "nhung thoi gian lang. noi dung hoc mo", "nhung thoi gian dan. hoc dung hoc mo", "nhung thoi gian dan. noi dong hoc mo", "nhung thoi gian dan. noi dung thuoc mo", "nhung thoi gian dan. noi trung hoc mo", "nhung thoi gian dan. noi dung hoc moi", "nhung thoi gian dan. noi dung hoc mot", "nhung thoi gian dan. noi dung hoc mon"
"phung thi quen vang. doi tuong ho moi" » "phung thi quan van. doi tuong ho moi", "phung thi que van. doi tuong ho moi", "phung thi que lang. doi tuong ho moi", "phung thi quen vang. moi truong ho moi", "phung thi quen vang. doi song ho moi", "phung thoi quen vang. doi tuong ho moi", "phung thi quan vang. doi tuong ho moi", "phung thi huyen vang. doi tuong ho moi", "phung thi quen vang. doi tong hop moi", "phung thi quen vang. doi tuong hoc moi", "phung thi quen vang. doi tuong cho moi", "phung thi quen vang. doi tuong hoa moi"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi gian dan. noi dung hoc mo") OR ("phung thi quen vang. doi tuong ho moi"))~.
• Removing quotes may allow a broader search: (( nhung thoi gian dan. noi dung hoc mo ) or ( phung thi quen vang. doi tuong ho moi ))~.
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi gian dan. noi dung hoc mo") or ("phung thi quen vang. doi tuong ho moi"))*.