Perhaps you should try some spelling variations:
"utilize structure partitioning" » "utilized structure partitioning" (Expand Search), "utilizes structure partitioning" (Expand Search), "utilize structural partitioning" (Expand Search), "utilize structure positioning" (Expand Search)
"optimized structurals partitioning" » "optimized structurals positioning" (Expand Search), "optimized structural partitioning" (Expand Search), "optimized structurally partitioning" (Expand Search), "optimized structurants partitioning" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("utilize structure partitioning") OR ("optimized structurals partitioning"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"utilize structure partitioning\") OR (\"optimized structurals partitioning\"))".
• Removing quotes may allow a broader search: (( utilize structure partitioning ) OR ( optimized structurals partitioning )).
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