Perhaps you should try some spelling variations:
hari belajar » mari belajar, mari belajara, cara belajar
belajar dan » belajar anak, belajar mata
awal usia » anak usia, asal usil
kajian di » kajian dan, kajian al, kajian qs
dan awal » dan amal, dari awal, dan anak
kajian a » kajian al, kajian dan, kajian qs

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: (( hasil belajar dan awal usia dini ) OR ( hari belajar ((kajian a) OR (kajian di)) dunia dan ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( hasil belajar dan awal usia dini ) or ( hari belajar ((kajian a) OR (kajian di)) dunia dan ))~".
• Adding a wildcard symbol may retrieve word variants: (( hasil belajar dan awal usia dini ) or ( hari belajar ((kajian a) OR (kajian di)) dunia dan ))*.