Perhaps you should try some spelling variations:
seri belajar » teori belajar, mari belajar
cara belajar » mari belajar, dalam belajar, ayo belajar
mata sahabat » mitra sahabat, para sahabat, atau sahabat
sahabat yang » sahabat nabi, sahabat anak
anak tetap » anak terapi, agar tetap, anda tetap
tiga dini » tiga di, tiga kiai, tiga dimensi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( seri belajar anak tetap ((tiga dini) OR (tina dini)) ) or ( cara belajar mata sahabat yang _ ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( seri belajar anak tetap ((tiga dini) OR (tina dini)) ) OR ( cara belajar mata sahabat yang _ ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri belajar anak tetap ((tiga dini) OR (tina dini)) ) or ( cara belajar mata sahabat yang _ ))*".