Perhaps you should try some spelling variations:
"modified coverage approximation algorithms" » "modified average approximation algorithms"
"modified learning via algorithm" » "mobile learning via algorithm", "modified caging via algorithm", "modified learning adam algorithm", "modified learning _ algorithm", "modified learning mom algorithm", "modified learning a algorithm", "modified learning video algorithm", "modified learning data algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified coverage approximation algorithms") or ("modified learning via algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified coverage approximation algorithms") OR ("modified learning via algorithm")).
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