Perhaps you should try some spelling variations:
"modified changing optimization algorithmss" » "modified changing optimization algorithms", "modified changing optimisation algorithm", "modified changing estimation algorithm", "modified staffing optimization algorithmss", "modified caging optimization algorithmss"
"modified allocation estimation algorithms" » "modified allocation optimization algorithms", "modified motion estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimisation algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified changing optimization algorithmss") OR ("modified allocation estimation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified changing optimization algorithmss\") OR (\"modified allocation estimation algorithms\"))".
• Removing quotes may allow a broader search: (( modified changing optimization algorithmss ) OR ( modified allocation estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified changing optimization algorithmss") OR ("modified allocation estimation algorithms"))*.