Perhaps you should try some spelling variations:
"defined network optimisation algorithm" » "defined network optimization algorithms", "defined network estimation algorithm", "defined network estimation algorithms", "defined network optimization algorithm", "designed network optimisation algorithm"
"modified objective predation algorithm" » "modified objective allocation algorithm", "modified objective predators algorithm", "modified objective estimation algorithm"

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