Perhaps you should try some spelling variations:
"modified passive solutions algorithms" » "modified passive solution algorithm", "modified passive evolution algorithm", "modified passive convolution algorithms", "modified positive solutions algorithms", "modified adaptive solutions algorithms"
"modified objective optimized algorithm" » "modified objective optimal algorithm", "modified objective optimization algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"

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 passive solutions algorithms") or ("modified objective optimized algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified passive solutions algorithms") OR ("modified objective optimized algorithm")).
• Removing quotes may allow a broader search: (( modified passive solutions algorithms ) or ( modified objective optimized algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified passive solutions algorithms") or ("modified objective optimized algorithm"))*.