Perhaps you should try some spelling variations:
"modified parameter optimization algorithmssss" » "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameters optimization algorithmssss"
"modified network estimation algorithms" » "modified network estimation algorithm", "modified network optimization algorithms", "modified network optimisation algorithm", "certified network estimation algorithms", "defined network estimation algorithms", "modified near estimation algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified network estimation algorithms") OR ("modified parameter optimization algorithmssss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified network estimation algorithms\") OR (\"modified parameter optimization algorithmssss\"))".
• Removing quotes may allow a broader search: (( modified network estimation algorithms ) OR ( modified parameter optimization algorithmssss )).
• Adding a wildcard symbol may retrieve word variants: (("modified network estimation algorithms") OR ("modified parameter optimization algorithmssss"))*.