Perhaps you should try some spelling variations:
kata pelajaran » mata pelajaran, kitab pelajaran, mata ppelajaran
belajar sains » belajar dan
mari belajar » hasil belajar
sains alam » sains dalam, sains anak, sains islami
alam hadar » al hadar, alam pada
hati dari » hati hati
hati dan » hati yang
hadar di » hadir di, dasar di, datar di
yahya b » yahya bin, yahya al

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( kata pelajaran ((hati dari) OR (hati dan)) yahya b ) or ( mari belajar sains alam hadar di ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( kata pelajaran ((hati dari) OR (hati dan)) yahya b ) OR ( mari belajar sains alam hadar di ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( kata pelajaran ((hati dari) OR (hati dan)) yahya b ) or ( mari belajar sains alam hadar di ))*".