Perhaps you should try some spelling variations:
"elements present algorithm" » "elements presented algorithm" (Expand Search), "elements treatment algorithm" (Expand Search), "elements forest algorithm" (Expand Search)
"waste processing algorithm" » "data processing algorithm" (Expand Search), "image processing algorithm" (Expand Search), "wood processing algorithm" (Expand Search)
"element ree algorithm" » "element tree algorithms" (Expand Search), "element new algorithm" (Expand Search), "element em algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "element te algorithm" (Expand Search), "element mesh 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: (("waste processing algorithm") OR ((("element ree algorithm") OR ("elements present algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"waste processing algorithm\") OR (((\"element ree algorithm\") OR (\"elements present algorithm\"))))".
• Removing quotes may allow a broader search: (( waste processing algorithm ) OR ((( element ree algorithm ) OR ( elements present algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("waste processing algorithm") OR ((("element ree algorithm") OR ("elements present algorithm"))))*.