Perhaps you should try some spelling variations:
"modified objective estimation algorithmsss" » "modified objective estimation algorithms", "modified objective optimization algorithmsss", "modified objective allocation algorithmsss"
"modified parameter estimation algorithm" » "modified parameter estimates algorithm", "modified parameter optimization algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified parameter estimation algorithm") OR ("modified objective estimation algorithmsss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified parameter estimation algorithm\") OR (\"modified objective estimation algorithmsss\"))*".
• Removing quotes may allow a broader search: (( modified parameter estimation algorithm ) OR ( modified objective estimation algorithmsss ))*.