Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithm", "modified multiobjective optimizer algorithms"
"modified thermal variation algorithm" » "modified thermal estimation algorithm", "modified thermal predation algorithm", "modified thermal estimation algorithms", "modified thermal evaporation algorithm", "modified thermal activation algorithm", "modified thermal oxidation algorithm"

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