Perhaps you should try some spelling variations:
"pesantren menurut anak" » "pesantren nurul anak", "pesantren menuju anak", "pesantren menurut asas", "pesantren menurut psak"
"pesantren menurut danah" » "pesantren nurul danah", "pesantren menurut dadang", "pesantren menurut sunnah", "pesantren menurut zakiah"
"pengantar bagi anak" » "pengantar bagian anak", "pengantar tata anak", "pengantar buku anak"

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: (((("pesantren menurut anak") OR ("pesantren menurut danah"))) OR ("pengantar bagi anak"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"pesantren menurut anak\") OR (\"pesantren menurut danah\"))) or (\"pengantar bagi anak\"))~".
• Removing quotes may allow a broader search: (((( pesantren menurut anak ) OR ( pesantren menurut danah ))) or ( pengantar bagi anak ))~.
• Adding a wildcard symbol may retrieve word variants: (((("pesantren menurut anak") OR ("pesantren menurut danah"))) or ("pengantar bagi anak"))*.