Perhaps you should try some spelling variations:
trinh nghiem » trinh nghien, kinh nghiem, trinh nghe
thi nghiem » thuc nghiem
cac trinh » cac tinh, lap trinh, cac thanh
nghiem de » nghiem d, nghiem do, nghiem te
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 trinh nghiem de hoc ) or ( so sanh ((thi nghiem) or (trac nghiem)) de hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( hoc cac trinh nghiem de hoc ) OR ( so sanh ((thi nghiem) OR (trac nghiem)) de hoc )).
• Adding a wildcard symbol may retrieve word variants: (( hoc cac trinh nghiem de hoc ) or ( so sanh ((thi nghiem) or (trac nghiem)) de hoc ))*.