Perhaps you should try some spelling variations:
"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)
"element rf algorithm" » "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element art algorithms" (Expand Search), "element ore algorithm" (Expand Search), "element ree algorithm" (Expand Search)

Try widening your search to All Fields.

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

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