Perhaps you should try some spelling variations:
"machine learning convolution algorithm" » "machine learning convolution algorithms", "machine learning evolution algorithm", "machine learning solution algorithm"
"modified invasive estimation algorithms" » "modified invasive estimation algorithm", "modified invasive optimization algorithms", "modified invasive optimisation algorithm", "modified invasive ventilation algorithms", "modified passive estimation algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("machine learning convolution algorithm") OR ("modified invasive estimation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"machine learning convolution algorithm\") OR (\"modified invasive estimation algorithms\"))".
• Removing quotes may allow a broader search: (( machine learning convolution algorithm ) OR ( modified invasive estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("machine learning convolution algorithm") OR ("modified invasive estimation algorithms"))*.