Perhaps you should try some spelling variations:
phuong thi » phung thi, huong thi, phong thi
thi quyet » thi tuyet, toi quyet, theo quyet
dung quoc » dang quoc, dong quoc, trung quoc
boi duong » hai duong, doi tuong, con duong
duong hoc » dong hoc, dung hoc, duong hoi
noi dung » hoc dung
nhung bo » nhung bi, nhung bai, nhung don
quoc lo » quoc co, quoc o, quoc so
qua ban » cua ban, qua quan
hoc moi » hoc noi
bo qua » bo quan, bao quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( phuong thi quyet van. noi dung quoc lo ) or ( nhung bo qua ban. boi duong hoc moi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phuong thi quyet van. noi dung quoc lo ) OR ( nhung bo qua ban. boi duong hoc moi )).
• Adding a wildcard symbol may retrieve word variants: (( phuong thi quyet van. noi dung quoc lo ) or ( nhung bo qua ban. boi duong hoc moi ))*.