Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
machines nursing » machines using, machinery using
df optimization » _ optimization, qoe optimization, _ optimisation
modified df » modified _, modified adam, modified bi1
methods » method

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( machines nursing methods algorithm ) or ( modified df optimization algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( machines nursing methods algorithm ) OR ( modified df optimization algorithm )).
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