Perhaps you should try some spelling variations:
"modified stochastic optimisation algorithm" » "modified stochastic optimization algorithm", "modified static optimization algorithm", "modified stochastic configuration algorithm", "modified stochastic optimization algorithms", "modified stochastic estimation algorithm", "modified stochastic estimation algorithms"
"modified df solution algorithm" » "modified df evolution algorithm", "modified df convolution algorithms", "modified df evolutionary algorithm", "modified _ solution algorithm", "modified adam solution algorithm", "modified bi1 solution algorithm", "modified drug solution algorithm", "modified up solutions 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 df solution algorithm") or ("modified stochastic optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified df solution algorithm") OR ("modified stochastic optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified df solution algorithm ) or ( modified stochastic optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified df solution algorithm") or ("modified stochastic optimisation algorithm"))*.