Perhaps you should try some spelling variations:
"modified dfdamdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified dfdamdaptive estimation algorithm", "modified _damdaptive quantization algorithm", "modified adamdamdaptive quantization algorithm", "modified bi1damdaptive quantization algorithm"
"modified df approximation algorithm" » "modified df approximation algorithms", "modified _ approximation algorithm", "modified one approximation algorithm", "modified time approximation algorithm", "modified adam approximation algorithm", "modified bi1 approximation algorithm"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified dfdamdaptive quantization algorithm") or ("modified df approximation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified dfdamdaptive quantization algorithm") OR ("modified df approximation algorithm")).
• Removing quotes may allow a broader search: (( modified dfdamdaptive quantization algorithm ) or ( modified df approximation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified dfdamdaptive quantization algorithm") or ("modified df approximation algorithm"))*.