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