Perhaps you should try some spelling variations:
kitab pelayanan » kitab pelajaran, kitab peladjaran, atas pelayanan
seri belajar » teori belajar, mari belajar, cara belajar
belajar hal » belajar al, belajar gaul, belajar dan
atas usia » batas usia, atas dunia, atas sma
sosial di » sosial dan
hal atas » hak atas, al attas
usia 4 » usia 3

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 hal atas usia 4 ) OR ( kitab pelayanan dan sosial di _ ))~.
• Adding a wildcard symbol may retrieve word variants: (( seri belajar hal atas usia 4 ) or ( kitab pelayanan dan sosial di _ ))*.