Perhaps you should try some spelling variations:
"minimize structures partitioning" » "minimize structural partitioning" (Expand Search), "minimize structures positioning" (Expand Search), "minimize structurals partitioning" (Expand Search)
"utilizeddddddddddds structure partitioning" » "utilizeddddddddddds structure positioning" (Expand Search), "utilizeddddddddddds structural partitioning" (Expand Search)

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