Perhaps you should try some spelling variations:
"verified network optimisation algorithm" » "verified network optimization algorithms", "verified network estimation algorithm", "verified network estimation algorithms", "verified network optimization algorithm", "certified network optimisation algorithm", "defined network optimisation algorithm"
"modified objective allocation algorithms" » "modified objective estimation algorithms", "modified objective approximation 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 objective allocation algorithms") or ("verified network optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective allocation algorithms") OR ("verified network optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified objective allocation algorithms ) or ( verified network optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective allocation algorithms") or ("verified network optimisation algorithm"))*.