Perhaps you should try some spelling variations:
mari belajar » hasil belajar
seri belajar » teori belajar, cara belajar
belajar dan » belajar anak, belajar mata
dunia dini » dunia ini, dunia edisi, dunia dan
serat usia » sejak usia, saat usia
dan wajah » dan wakaf, dan ijah, dua wajah
dan serat » dan sehat, dan surat, dan berat
di wajah » di wajahmu, dua wajah, ini wajah
usia di » usia dini, dunia di, mulia di

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 ((dan wajah) OR (di wajah)) dunia dini ) or ( mari belajar dan serat usia di ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( seri belajar ((dan wajah) OR (di wajah)) dunia dini ) OR ( mari belajar dan serat usia di )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri belajar ((dan wajah) OR (di wajah)) dunia dini ) or ( mari belajar dan serat usia di ))".
• Adding a wildcard symbol may retrieve word variants: (( seri belajar ((dan wajah) OR (di wajah)) dunia dini ) or ( mari belajar dan serat usia di ))*.