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