Perhaps you should try some spelling variations:
"modified aging optimization algorithms" » "modified aging estimation algorithms", "modified aging estimation algorithm", "modified aging optimized algorithms", "modified staffing optimization algorithms", "modified game optimization algorithms", "modified caging optimization algorithms"
"modified notion optimisation algorithm" » "modified notion estimation algorithm", "modified notion estimation algorithms", "modified network optimization algorithm"

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 aging optimization algorithms") or ("modified notion optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified aging optimization algorithms") OR ("modified notion optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified aging optimization algorithms ) or ( modified notion optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified aging optimization algorithms") or ("modified notion optimisation algorithm"))*.