Perhaps you should try some spelling variations:
belajar hafalan » belajar harian
menengah arus » menengah atas, tengah arus, menengah umum
sejarah datar » sejarah dalam, sejarah atsar, sejarah mataram
ayo belajar » mari belajar
hafalan ii » hafalan al, hafalan tk, hafalan bait
datar di » dasar di, datang di, datar dan
ii dunia » di dunia, mini dunia, api dunia

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: (( dan menengah arus sejarah datar di ) OR ( ayo belajar hafalan ii dunia dan ))~.
• Adding a wildcard symbol may retrieve word variants: (( dan menengah arus sejarah datar di ) or ( ayo belajar hafalan ii dunia dan ))*.