Perhaps you should try some spelling variations:
"modified network approximation algorithms" » "certified network approximation algorithms", "defined network approximation algorithms", "modified near approximation algorithms"
"modified caging source algorithm" » "modified caging our algorithm", "modified caging search algorithm", "modified aging source algorithm", "modified changing source algorithm", "modified charging source algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified network approximation algorithms") or ("modified caging source algorithm"))~.
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