Perhaps you should try some spelling variations:
mari belajar » hasil belajar
belajar mata » belajar anak
surat sosial » strata sosial
sosial dini » sosial edisi, sosial dan, sosial di
mata surat » macam surat, gara surat, atas surat
dan sejak » dan jejak, dan sepak, dan sehat

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: (( mari belajar dan sejak usia dini ) OR ( teori belajar mata surat sosial dini ))~.
• Adding a wildcard symbol may retrieve word variants: (( mari belajar dan sejak usia dini ) or ( teori belajar mata surat sosial dini ))*.