Perhaps you should try some spelling variations:
"modified adaptive optimization algorithms" » "modified adaptive optimisation algorithm", "modified adaptive estimation algorithms", "modified adaptive estimation algorithm", "modified objective optimization algorithms", "modified adaptive quantization algorithms", "modified static optimization algorithms", "modified passive optimization algorithms"
"machines using methods algorithm" » "machinery using methods algorithm", "machines nursing methods algorithm", "machines making methods algorithm", "machines counting methods algorithm"

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

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