Perhaps you should try some spelling variations:
"experiments search algorithm" » "experiments each algorithm" (Expand Search), "experiments seap algorithm" (Expand Search), "experimental research algorithm" (Expand Search)
"level using algorithms" » "level pacing algorithms" (Expand Search), "level nine algorithms" (Expand Search), "level sorting algorithms" (Expand Search), "levels using algorithms" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("experiments search algorithm") OR ("level using algorithms"))) OR ("neural coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"experiments search algorithm\") OR (\"level using algorithms\"))) OR (\"neural coding algorithm\"))".
• Removing quotes may allow a broader search: (((( experiments search algorithm ) OR ( level using algorithms ))) OR ( neural coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("experiments search algorithm") OR ("level using algorithms"))) OR ("neural coding algorithm"))*.