Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
charging estimation » charging station
modified charging » modified caging, modified carbon
modified network » certified network, defined network, modified near

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified network optimization algorithm ) or ( modified charging estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified network optimization algorithm ) OR ( modified charging estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified network optimization algorithm ) or ( modified charging estimation algorithms ))*.