Perhaps you should try some spelling variations:
"modified allocation optimization algorithmssss" » "modified allocation optimization algorithms", "modified allocation optimisation algorithm", "modified location optimization algorithmssss"
"designed network estimation algorithm" » "designed network optimization algorithm", "defined network estimation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("designed network estimation algorithm") OR ("modified allocation optimization algorithmssss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"designed network estimation algorithm\") OR (\"modified allocation optimization algorithmssss\"))".
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