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