Perhaps you should try some spelling variations:
"a optimisation algorithm" » "a optimization algorithms", "a estimation algorithms", "_ optimisation algorithm", "_ optimization algorithm", "game optimization algorithm"
"_ 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: (((("a optimisation algorithm") or ("_ solution algorithm"))) or ("policy estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a optimisation algorithm") OR ("_ solution algorithm"))) OR ("policy estimation algorithm")).
• Removing quotes may allow a broader search: (((( a optimisation algorithm ) or ( _ solution algorithm ))) or ( policy estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("a optimisation algorithm") or ("_ solution algorithm"))) or ("policy estimation algorithm"))*.