Perhaps you should try some spelling variations:
"modified network approximation algorithm" » "modified network approximation algorithms", "certified network approximation algorithm", "defined network approximation algorithm", "modified near approximation algorithm"
"modified pose optimization algorithms" » "modified pose optimisation algorithm", "modified pose estimation algorithms", "modified pose estimation algorithm", "modified qoe optimization algorithms", "modified game optimization algorithms", "modified response optimization algorithms", "modified male optimization algorithms", "modified passive optimization 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 pose optimization algorithms") OR ("modified network approximation algorithm"))~.
• Removing quotes may allow a broader search: (( modified pose optimization algorithms ) or ( modified network approximation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified pose optimization algorithms") or ("modified network approximation algorithm"))*.