Perhaps you should try some spelling variations:
"perdata telaah ulang perjuangan ali songo" » "perdata telaah yan perjuangan ali songo", "perdata telaah sarana perjuangan ali songo", "perdata telaah dalam perjuangan ali songo", "perdata terhadap ulang perjuangan ali songo", "perdata telaah ulang perjuangan wali songo", "perdata telaah ulang perjuangan aini songo", "perdata telaah ulang perjuangan di songo", "perdata telaah ulang perjuangan wali songoa", "perdata telaah ulang perjuangan ali sang"
"perdata telaah dan perjuangan ali songo" » "perdata terhadap dan perjuangan ali songo", "perdata telaah dan perkembangan ali songo", "perdata telaah dan perjuangan wali songo", "perdata telaah dan perjuangan aini songo", "perdata telaah dan perjuangan di songo", "perdata teladan dan perjuangan ali songo", "perdata telaah al perjuangan ali songo", "perdata telaah maani perjuangan ali songo", "perdata telaah dan perjuangan wali songoa", "perdata telaah dan perjuangan ali sang"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("perdata telaah dan perjuangan ali songo") OR ("perdata telaah ulang perjuangan ali songo"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"perdata telaah dan perjuangan ali songo\") OR (\"perdata telaah ulang perjuangan ali songo\"))".
• Removing quotes may allow a broader search: (( perdata telaah dan perjuangan ali songo ) OR ( perdata telaah ulang perjuangan ali songo )).
• Adding a wildcard symbol may retrieve word variants: (("perdata telaah dan perjuangan ali songo") OR ("perdata telaah ulang perjuangan ali songo"))*.