Perhaps you should try some spelling variations:
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation algorithms"
"_ solution algorithm" » "_ evolution algorithm", "_ convolution algorithms", "_ evolutionary algorithm", "_ solutions algorithm"
"policy estimation algorithm" » "policy optimization algorithm", "pose estimation algorithm", "motion estimation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("_ optimization algorithm") or ("_ solution algorithm"))) or ("policy estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ optimization algorithm") OR ("_ solution algorithm"))) OR ("policy estimation algorithm")).
• Removing quotes may allow a broader search: (((( _ optimization algorithm ) or ( _ solution algorithm ))) or ( policy estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("_ optimization algorithm") or ("_ solution algorithm"))) or ("policy estimation algorithm"))*.