Perhaps you should try some spelling variations:
belajar hewan » belajar lawan, belajar dengan, belajar harian
sejarah barat » sejarah para, sejarah surat, sejarah banaten
seri belajar » teori belajar, mari belajar, cara belajar
teori dasar » seri dasar, teori sastra, materi dasar
dan dunia » di dunia
barat di » bara di, barat dari, barat dan

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: (( teori dasar dan sejarah barat di ) OR ( seri belajar hewan dan dunia dan ))~.
• Adding a wildcard symbol may retrieve word variants: (( teori dasar dan sejarah barat di ) or ( seri belajar hewan dan dunia dan ))*.