Perhaps you should try some spelling variations:
"modified notion optimization algorithms" » "modified notion optimisation algorithm", "modified notion estimation algorithms", "modified notion estimation algorithm", "modified network optimization algorithms", "modified policy optimization algorithms", "modified allocation optimization algorithms"
"machines graining methods algorithm" » "machine learning methods algorithm", "machines learning methods algorithm", "machines learning method algorithm", "machines making methods 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: (("machines graining methods algorithm") or ("modified notion optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("machines graining methods algorithm") OR ("modified notion optimization algorithms")).
• Removing quotes may allow a broader search: (( machines graining methods algorithm ) or ( modified notion optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("machines graining methods algorithm") or ("modified notion optimization algorithms"))*.