Perhaps you should try some spelling variations:
"sirri telaah dan pengembangan wali songo" » "sirri telaah dan pengembangan al songo", "sirri telaah dan pengembangan sapi songo", "sirri telaah dan pengembangan wakaf songo", "bisri telaah dan pengembangan wali songo", "asyari telaah dan pengembangan wali songo", "sirri setelah dan pengembangan wali songo", "sirri telaah al pengembangan wali songo", "sirri telaah ulang pengembangan wali songo", "sirri telaah maani pengembangan wali songo"
"seri teladan dan perjuangan wali songo" » "seri teladan dan keuangan wali songo", "seri teladan dan perkembangan wali songo", "cerita teladan dan perjuangan wali songo", "seri teladan dari perjuangan wali songo", "seri teladan sang perjuangan wali songo", "seri teladan di perjuangan wali songo"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("sirri telaah dan pengembangan wali songo") or ("seri teladan dan perjuangan wali songo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sirri telaah dan pengembangan wali songo") OR ("seri teladan dan perjuangan wali songo")).
• Removing quotes may allow a broader search: (( sirri telaah dan pengembangan wali songo ) or ( seri teladan dan perjuangan wali songo )).
• Adding a wildcard symbol may retrieve word variants: (("sirri telaah dan pengembangan wali songo") or ("seri teladan dan perjuangan wali songo"))*.