Perhaps you should try some spelling variations:
materi belajar » teori belajar, seri belajar, strategi belajar
dan berbagai » dan berbagi, dari berbagai, di berbagai
mari belajar » hasil belajar
belajar tata » belajar mata, belajar tanpa, belajar baca
tata negara » dasar negara, usaha negara
alat di » salat di, shalat di, zakat di
adat di » zakat di
dan 4 » dan _, dan m, dan 2

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: (( materi belajar dan berbagai ((alat di) OR (adat di)) ) OR ( mari belajar tata negara dan 4 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( materi belajar dan berbagai ((alat di) OR (adat di)) ) or ( mari belajar tata negara dan 4 ))~".
• Adding a wildcard symbol may retrieve word variants: (( materi belajar dan berbagai ((alat di) OR (adat di)) ) or ( mari belajar tata negara dan 4 ))*.