Perhaps you should try some spelling variations:
teori belajar » mari belajar
menurut yusuf » menurut hukum, menurut uu, menurut uud
diri remaja » fiksi remaja
belajar al » belajar dan, belajar di, belajar dalam
al menurut » akal menurut, dan menurut, mlm menurut
yusuf fi » yusuf bin, yusuf ail, yusuf ali
hasan di » hasanah di, hasan ali, hasan al

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 al menurut yusuf fi ) OR ( diri remaja ((muslim dan) OR (muslim di)) hasan di ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( teori belajar al menurut yusuf fi ) or ( diri remaja ((muslim dan) OR (muslim di)) hasan di ))~".
• Adding a wildcard symbol may retrieve word variants: (( teori belajar al menurut yusuf fi ) or ( diri remaja ((muslim dan) OR (muslim di)) hasan di ))*.