Perhaps you should try some spelling variations:
mari belajar » hasil belajar
belajar aku » belajar al, belajar ke, belajar anak
aku panjang » aku pantang, waktu panjang, sari panjang
dan sejak » dan jejak, dan sepak, dan sehat
umur di » umum di, umur dan, gugur di
umar di » umar bin, umar dan, umar dkk
dini » ini, diri

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 aku panjang ((umur di) OR (umar di)) ) OR ( mari belajar dan sejak usia dini ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar aku panjang ((umur di) OR (umar di)) ) or ( mari belajar dan sejak usia dini ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar aku panjang ((umur di) OR (umar di)) ) or ( mari belajar dan sejak usia dini ))*.