Perhaps you should try some spelling variations:
mari belajar » hasil belajar
belajar data » belajar mata, belajar tata, belajar kata
anak pelajar » anak belajar, ala pelajar, anakku belajar
pelajar dan » belajar dan, belajar dari
data dan » kata dan, fakta dan, cita dan
dan dt » dan debt, dan data, dan diet

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 data dan dt dar ) OR ( anak pelajar dan sejarah ((dan di) OR (dan dr)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar data dan dt dar ) or ( anak pelajar dan sejarah ((dan di) OR (dan dr)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar data dan dt dar ) or ( anak pelajar dan sejarah ((dan di) OR (dan dr)) ))*.