Perhaps you should try some spelling variations:
seri belajar » teori belajar, cara belajar
mari belajar » hasil belajar
sahabat pena » sahabat dunia, sahabat anak, sahabat yang
belajar ala » belajar alat, belajar al, belajar aba
ala sahabat » alam sahabat, alami sahabat, para sahabat
anda cetak » anda cemas
dan rina » dan riba, dan ria, dan rika

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: (( seri belajar ((anda cetak) OR (anda tetap)) dan rina ) OR ( mari belajar ala sahabat pena _ ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri belajar ((anda cetak) OR (anda tetap)) dan rina ) or ( mari belajar ala sahabat pena _ ))~".
• Adding a wildcard symbol may retrieve word variants: (( seri belajar ((anda cetak) OR (anda tetap)) dan rina ) or ( mari belajar ala sahabat pena _ ))*.