Perhaps you should try some spelling variations:
"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"
"modified pose estimation algorithms" » "modified pose estimation algorithm", "modified pose optimization algorithms", "modified pose optimisation algorithm", "modified male estimation algorithms", "modified passive estimation algorithms"

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 pose estimation algorithms\") OR (\"modified df approximation algorithm\"))~".
• Removing quotes may allow a broader search: (( modified pose estimation algorithms ) OR ( modified df approximation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified pose estimation algorithms") OR ("modified df approximation algorithm"))*.