Perhaps you should try some spelling variations:
"modified invasive optimized algorithms" » "modified invasive optimized algorithm", "modified invasive optimizer algorithms", "modified invasive optimization algorithms", "modified passive optimized algorithms"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified invasive optimized algorithms") OR ("modified objective estimation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified invasive optimized algorithms\") OR (\"modified objective estimation algorithm\"))*".
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