Perhaps you should try some spelling variations:
"data modeling algorithm" » "data making algorithm" (Expand Search), "data modelling algorithm" (Expand Search), "data models algorithm" (Expand Search)
"element method algorithms" » "element two algorithms" (Expand Search), "element both algorithms" (Expand Search), "element other algorithms" (Expand Search), "elements method algorithms" (Expand Search)
"gmm clustering algorithm" » "_ clustering 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 algorithms") OR ((("gmm clustering algorithm") OR ("data modeling algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithms\") OR (((\"gmm clustering algorithm\") OR (\"data modeling algorithm\"))))".
• Removing quotes may allow a broader search: (( element method algorithms ) OR ((( gmm clustering algorithm ) OR ( data modeling algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithms") OR ((("gmm clustering algorithm") OR ("data modeling algorithm"))))*.