Perhaps you should try some spelling variations:
"mixed-integradoldadollldadalldo linear programming" » "mixed-integraldoldadollldadalldo linear programming" (Expand Search), "mixed-integradodoldadollldadalldo linear programming" (Expand Search), "mixed-integradadoldadollldadalldo linear programming" (Expand Search)
"mixed-integra linear programming" » "mixed-integral linear programming" (Expand Search), "mixed-integrado linear programming" (Expand Search), "mixed-integrada linear programming" (Expand Search)

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