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