Perhaps you should try some spelling variations:
mari belajar » hasil belajar
belajar mata » belajar dan, belajar anak
sahabat wang » sahabat yang, sahabat dan, sahabat wanita
mata tahap » mata tetap
ketiga dan » etika dan, ketiga dpk
ketiga di » ketiga dpk
belajar 1 » belajar 12, belajar 9, belajar di
wang 1 » gang 1, wang _, wang 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: (( mari belajar mata tahap ((ketiga di) OR (ketiga dan)) ) OR ( ayo belajar 1 sahabat wang 1 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar mata tahap ((ketiga di) OR (ketiga dan)) ) or ( ayo belajar 1 sahabat wang 1 ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar mata tahap ((ketiga di) OR (ketiga dan)) ) or ( ayo belajar 1 sahabat wang 1 ))*.