Perhaps you should try some spelling variations:
dua penelitian » kedua penelitian, data penelitian, dan penelitian
lala belajar » dalam belajar, malas belajar, cara belajar
belajar sae » belajar slam, belajar dan, belajar al
sae sejarah » saw sejarah, fase sejarah, sari sejarah
dunia dwi » dunia dari, dunia dan, dunia ii
seri dua » seri doa, dari dua, seri kue
dunia di » dunia dari, dunia dan, dunia 4
dan dua » dan dunia, dan daya
dua di » duka di, tua di, gua di

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: (( seri dua penelitian dan dua di ) OR ( lala belajar sae sejarah ((dunia dwi) OR (dunia di)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri dua penelitian dan dua di ) or ( lala belajar sae sejarah ((dunia dwi) OR (dunia di)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( seri dua penelitian dan dua di ) or ( lala belajar sae sejarah ((dunia dwi) OR (dunia di)) ))*.