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"
"mobile learning method algorithm" » "mobile learning mom algorithm", "machine learning method algorithm", "mobile learning methods algorithm", "mobile graining methods algorithm", "mobile learning emotion algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("mobile learning method algorithm") or ("modified invasive optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("mobile learning method algorithm") OR ("modified invasive optimization algorithms")).
• Removing quotes may allow a broader search: (( mobile learning method algorithm ) or ( modified invasive optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("mobile learning method algorithm") or ("modified invasive optimization algorithms"))*.