Perhaps you should try some spelling variations:
"modified dfdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified dfdaptive estimation algorithm"
"modified passive estimation algorithms" » "modified passive estimation algorithm", "modified passive optimization algorithms", "modified passive optimisation algorithm", "modified pose estimation algorithms", "modified adaptive estimation 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 passive estimation algorithms") OR ("modified dfdaptive quantization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified passive estimation algorithms\") OR (\"modified dfdaptive quantization algorithm\"))".
• Removing quotes may allow a broader search: (( modified passive estimation algorithms ) OR ( modified dfdaptive quantization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified passive estimation algorithms") OR ("modified dfdaptive quantization algorithm"))*.