Perhaps you should try some spelling variations:
"modified adamdamdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified adamdamdaptive estimation algorithm"
"modified bi1 approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified one approximation algorithms"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified adamdamdaptive quantization algorithm") OR ("modified bi1 approximation algorithms"))~.
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