Perhaps you should try some spelling variations:
"element mapping algorithm" » "element sampling algorithm" (Expand Search), "element matching algorithm" (Expand Search), "element learning algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"recent mining algorithm" » "recent learning algorithm" (Expand Search), "recent means algorithm" (Expand Search), "recent finding algorithm" (Expand Search), "recent findings algorithm" (Expand Search)
"element tree algorithms" » "element three algorithms" (Expand Search), "element other algorithms" (Expand Search), "element art algorithms" (Expand Search), "element ree algorithms" (Expand Search), "element te algorithms" (Expand Search), "elements ree algorithms" (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: (((("element mapping algorithm") OR ("recent mining algorithm"))) OR ("element tree algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element mapping algorithm\") OR (\"recent mining algorithm\"))) OR (\"element tree algorithms\"))".
• Removing quotes may allow a broader search: (((( element mapping algorithm ) OR ( recent mining algorithm ))) OR ( element tree algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("element mapping algorithm") OR ("recent mining algorithm"))) OR ("element tree algorithms"))*.