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