Perhaps you should try some spelling variations:
"modified allocation estimation algorithms" » "modified allocation optimization algorithms", "modified motion estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimisation algorithm"
"modified based optimizer algorithms" » "modified based optimized algorithms", "modified based optimized algorithm", "modified based optimization algorithms", "modified male optimizer algorithms"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified based optimizer algorithms") or ("modified allocation estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified based optimizer algorithms") OR ("modified allocation estimation algorithms")).
• Removing quotes may allow a broader search: (( modified based optimizer algorithms ) or ( modified allocation estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified based optimizer algorithms") or ("modified allocation estimation algorithms"))*.