Perhaps you should try some spelling variations:
"modified dfdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified dfdaptive estimation algorithm"
"modified adam approximation algorithms" » "modified _ approximation algorithms", "modified one approximation algorithms", "modified time approximation algorithms", "modified df approximation algorithms", "modified near approximation algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified dfdaptive quantization algorithm") OR ("modified adam approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified dfdaptive quantization algorithm\") OR (\"modified adam approximation algorithms\"))".
• Removing quotes may allow a broader search: (( modified dfdaptive quantization algorithm ) OR ( modified adam approximation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified dfdaptive quantization algorithm") OR ("modified adam approximation algorithms"))*.