Perhaps you should try some spelling variations:
berbagai negara » lembaga negara
seri belajar » teori belajar, cara belajar
mari belajar » hasil belajar
belajar dan » belajar anak, belajar mata
dan media » di media
negara 2 » negara 1, negara _, negara 5
dan edi » dan evi, dan medis, dan medik

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 belajar di berbagai negara 2 ) OR ( mari belajar dan ((dan edi) OR (dan media)) tri ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( seri belajar di berbagai negara 2 ) or ( mari belajar dan ((dan edi) OR (dan media)) tri ))~".
• Adding a wildcard symbol may retrieve word variants: (( seri belajar di berbagai negara 2 ) or ( mari belajar dan ((dan edi) OR (dan media)) tri ))*.