Perhaps you should try some spelling variations:
kesehatan upaya » kesehatan pada, kesehatan usia, kesehatan bayi
upaya mencegah » upaya pencegahan, upaya menjaga, upaya menekan
mencegah dunia » mengubah dunia, mencegah dan, mengenal dunia
mari belajar » hasil belajar
belajar 1 » belajar 12, belajar 9, belajar di
hasan di » hasanah di, hasan ali
1 serta » 1 peserta, 1 serial, 28 serta

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: (( mari belajar 1 serta ((hasan di) OR (hasan al)) ) OR ( 1 kesehatan upaya mencegah dunia dan ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar 1 serta ((hasan di) OR (hasan al)) ) or ( 1 kesehatan upaya mencegah dunia dan ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar 1 serta ((hasan di) OR (hasan al)) ) or ( 1 kesehatan upaya mencegah dunia dan ))*.