Perhaps you should try some spelling variations:
"argument mapping algorithm" » "argument making algorithm" (Expand Search), "argument mining algorithm" (Expand Search), "argument learning algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element tree algorithms" » "element three algorithms" (Expand Search), "element art algorithms" (Expand Search), "element two algorithms" (Expand Search), "element ree algorithms" (Expand Search), "element te algorithms" (Expand Search), "element ore algorithms" (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 tree algorithms") OR ("element method algorithm"))) OR ("argument mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element tree algorithms\") OR (\"element method algorithm\"))) OR (\"argument mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( element tree algorithms ) OR ( element method algorithm ))) OR ( argument mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element tree algorithms") OR ("element method algorithm"))) OR ("argument mapping algorithm"))*.