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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified invasive optimization algorithms\") OR (\"modified learning convolution algorithms\"))~".
• Removing quotes may allow a broader search: (( modified invasive optimization algorithms ) OR ( modified learning convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified invasive optimization algorithms") OR ("modified learning convolution algorithms"))*.