Perhaps you should try some spelling variations:
"modified dfdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified dfdaptive estimation algorithm"
"modified adam estimation algorithms" » "modified adam estimation algorithm", "modified adam optimization algorithms", "modified adam optimisation algorithm", "modified df estimation algorithms", "modified near estimation algorithms"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified dfdaptive quantization algorithm") OR ("modified adam estimation algorithms"))~.
• Removing quotes may allow a broader search: (( modified dfdaptive quantization algorithm ) or ( modified adam estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified dfdaptive quantization algorithm") or ("modified adam estimation algorithms"))*.