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