Perhaps you should try some spelling variations:
thanh nghien » phan nghien, thanh nguyen, thanh nien
trai nghiem » thi nghiem
cac thanh » bac thanh, cach nhanh, ban thanh
nghien de » nghiem de, nghiep ke, nghiem d
hoc cac » hoc cao
so sanh » do sanh
de hoc » te hoc, du hoc, dien hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( hoc cac thanh nghien de hoc ) or ( so sanh ((trai nghiem) or (trac nghiem)) de hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( hoc cac thanh nghien de hoc ) OR ( so sanh ((trai nghiem) OR (trac nghiem)) de hoc )).
• Adding a wildcard symbol may retrieve word variants: (( hoc cac thanh nghien de hoc ) or ( so sanh ((trai nghiem) or (trac nghiem)) de hoc ))*.