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

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