Perhaps you should try some spelling variations:
"modified adaptive optimization algorithms" » "modified adaptive optimisation algorithm", "modified adaptive estimation algorithm", "modified adaptive optimized algorithms", "modified objective optimization algorithms", "modified adaptive quantization algorithms", "modified static optimization algorithms", "modified passive optimization algorithms"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimisation algorithm", "modified objective approximation algorithms", "modified objective optimization algorithms", "modified objective allocation 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 objective estimation algorithms") or ("modified adaptive optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective estimation algorithms") OR ("modified adaptive optimization algorithms")).
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) or ( modified adaptive optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithms") or ("modified adaptive optimization algorithms"))*.