Perhaps you should try some spelling variations:
phung tac » phuong tay, phung tran, phuong tai
quen vang » quan van, que van, que lang
muong hoc » duong hoc, tuong hoc, muong hoa
nhung bi » nhung bai, nhung gi
noi dung » hoc dung
dung cua » dung luan, dung cho
bi quen » bi quyet, bi quang, si quyen
quan va » quan vi, quan ha, luan va
hoc mo » hoc moi, hoc mot, hoc mon

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung bi quen vang. noi dung cua cong ) or ( phung tac quan va. nguoi muong hoc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung bi quen vang. noi dung cua cong ) OR ( phung tac quan va. nguoi muong hoc mo )).
• Adding a wildcard symbol may retrieve word variants: (( nhung bi quen vang. noi dung cua cong ) or ( phung tac quan va. nguoi muong hoc mo ))*.