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