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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified df estimation algorithm\") OR (\"modified dfdamdaptive quantization algorithm\"))~".
• Removing quotes may allow a broader search: (( modified df estimation algorithm ) OR ( modified dfdamdaptive quantization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified df estimation algorithm") OR ("modified dfdamdaptive quantization algorithm"))*.