Perhaps you should try some spelling variations:
"modified motion estimation algorithmssss" » "modified motion estimation algorithm", "modified motion estimation algorithmsss", "modified motion optimization algorithmssss", "modified motion optimisation algorithmsss", "modified notion estimation algorithmssss"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"

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