Perhaps you should try some spelling variations:
"rna processing algorithm" » "data processing algorithm" (Expand Search), "signal processing algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"element erf algorithm" » "element rf algorithm" (Expand Search), "element em algorithm" (Expand Search), "element rl algorithm" (Expand Search), "element ore algorithm" (Expand Search), "element mesh algorithm" (Expand Search)
"food processing algorithm" » "fold processing 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: (("element erf algorithm") OR ((("rna processing algorithm") OR ("food processing algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element erf algorithm\") OR (((\"rna processing algorithm\") OR (\"food processing algorithm\"))))".
• Removing quotes may allow a broader search: (( element erf algorithm ) OR ((( rna processing algorithm ) OR ( food processing algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element erf algorithm") OR ((("rna processing algorithm") OR ("food processing algorithm"))))*.