Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"machines using ibm algorithm" » "machinery using ibm algorithm", "machines using mom algorithm", "machines using adam algorithm", "machines using _ algorithm", "machines using rbf 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 multiobjective estimation algorithms") OR ("machines using ibm algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified multiobjective estimation algorithms\") OR (\"machines using ibm algorithm\"))*".
• Removing quotes may allow a broader search: (( modified multiobjective estimation algorithms ) OR ( machines using ibm algorithm ))*.