Perhaps you should try some spelling variations:
"modified invasive solution algorithm" » "modified invasive evolution algorithm", "modified invasive convolution algorithms", "modified invasive evolutionary algorithm", "modified passive solution algorithm"
"modified parameter approximation algorithms" » "modified parameters approximation 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 invasive solution algorithm") OR ("modified parameter approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified invasive solution algorithm\") OR (\"modified parameter approximation algorithms\"))*".
• Removing quotes may allow a broader search: (( modified invasive solution algorithm ) OR ( modified parameter approximation algorithms ))*.