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