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