Perhaps you should try some spelling variations:
"element modeling algorithm" » "element scheduling algorithm" (Expand Search), "elements modeling algorithm" (Expand Search)
"presented using algorithms" » "presented cosine algorithm" (Expand Search)
"element rf algorithm" » "element rd algorithm" (Expand Search), "element _ algorithms" (Expand Search), "elements rf 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 modeling algorithm") OR ("element rf algorithm"))) OR ("presented using algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element modeling algorithm\") OR (\"element rf algorithm\"))) OR (\"presented using algorithms\"))".
• Removing quotes may allow a broader search: (((( element modeling algorithm ) OR ( element rf algorithm ))) OR ( presented using algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("element modeling algorithm") OR ("element rf algorithm"))) OR ("presented using algorithms"))*.