Perhaps you should try some spelling variations:
mari belajar » hasil belajar
belajar akar » belajar dasar, belajar anak, belajar aba
belajar ski » belajar di, belajar ke, belajar sains
belajar aku » belajar al, belajar ke, belajar anak
bank dunia » dan dunia
sejarah di » sejarah dan, sejarah dunia
ski bank » di bank, bni bank, ke bank
di di » di dki, sdi di, di mi

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 ski bank dunia dan ) OR ( hari ((belajar akar) OR (belajar aku)) sejarah di di ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar ski bank dunia dan ) or ( hari ((belajar akar) OR (belajar aku)) sejarah di di ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar ski bank dunia dan ) or ( hari ((belajar akar) OR (belajar aku)) sejarah di di ))*.