Perhaps you should try some spelling variations:
teori belajar » mari belajar
mutu sekolah » putus sekolah, guru sekolah, luar sekolah
remaja mutu » remaja putus, remaja buku, remaja putra
menurut m » menurut al, menurut kh, menurut imam
buku iii » buku ii, buku i
buku di » buku ii, buku i, buku ini

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 belajar _ menurut m 4 ) OR ( fiksi remaja mutu sekolah ((buku di) OR (buku iii)) ))~.
• Adding a wildcard symbol may retrieve word variants: (( teori belajar _ menurut m 4 ) or ( fiksi remaja mutu sekolah ((buku di) or (buku iii)) ))*.