Perhaps you should try some spelling variations:
"data fitting algorithm" » "data finding algorithm" (Expand Search), "data filtering algorithm" (Expand Search), "data twisting algorithm" (Expand Search), "data settings algorithm" (Expand Search), "data mining algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"based model algorithm" » "based novel algorithm" (Expand Search), "based modbo algorithm" (Expand Search), "based modeling 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 method algorithm") OR ((("data fitting algorithm") OR ("based model algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithm\") OR (((\"data fitting algorithm\") OR (\"based model algorithm\"))))".
• Removing quotes may allow a broader search: (( element method algorithm ) OR ((( data fitting algorithm ) OR ( based model algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithm") OR ((("data fitting algorithm") OR ("based model algorithm"))))*.