Perhaps you should try some spelling variations:
"seri teladan umat perjuangan wali songo" » "seri teladan yan perjuangan wali songo", "seri teladan materi perjuangan wali songo", "seri teladan rampai perjuangan wali songo", "cerita teladan umat perjuangan wali songo", "seri teladan umat perjuangan ali songo"
"seri telaah dan perjuangan wali songo" » "seri telaah dan keuangan wali songo", "seri telaah dan perkembangan wali songo", "cerai telaah dan perjuangan wali songo", "seri jelajah dan perjuangan wali songo", "sirri telaah dan perjuangan wali songo", "seri teladan dan perjuangan wali songo", "seri telaah al perjuangan wali songo", "seri telaah ulang perjuangan wali songo", "seri telaah dan perjuangan ali songo"

Try widening your search to All Fields.

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