Perhaps you should try some spelling variations:
sahabat gang » sahabat yang, sahabat dan, sahabat bunga
seri belajar » teori belajar, mari belajar, cara belajar
belajar ala » belajar alat, belajar al, belajar aba
ala sahabat » alam sahabat, alami sahabat, para sahabat
dan rotan » dengan rotan
dan otak » dan optik, dan total, dan kota
dan dua » dan dunia, dan daya

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 ((dan otak) OR (dan rotan)) dan dua ) OR ( hasil belajar ala sahabat gang 1 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri belajar ((dan otak) OR (dan rotan)) dan dua ) or ( hasil belajar ala sahabat gang 1 ))~".
• Adding a wildcard symbol may retrieve word variants: (( seri belajar ((dan otak) OR (dan rotan)) dan dua ) or ( hasil belajar ala sahabat gang 1 ))*.