Perhaps you should try some spelling variations:
"social government financing system." » "social government finance system.", "social government finances system.", "social government funding system.", "local government financing system.", "society government financing system.", "local governments financing system.", "social government financial system.", "social government financial systems."
"rural investment finance system." » "rural investment financing system.", "social investment finance system.", "global investment finance system.", "rural investment financial system.", "rural investment financial systems.", "rural investment insurance system."

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