Perhaps you should try some spelling variations:
"social investments insurance series." » "social investment insurance series.", "social investments ensuring series.", "social investment finance series.", "local investment insurance series.", "capital investments insurance series.", "social investments insurance services.", "social investments insurance reserves.", "social investments insurance service."
"royal government financing smes." » "royal government finance smes.", "royal government finances smes.", "royal government funding smes.", "local government financing smes.", "total government financing smes.", "local governments financing smes.", "royal government financing issues.", "royal government financing needs.", "royal government financing small."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("social investments insurance series.") or ("royal government financing smes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("social investments insurance series.") OR ("royal government financing smes.")).
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• Adding a wildcard symbol may retrieve word variants: (("social investments insurance series.") or ("royal government financing smes."))*.