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