Perhaps you should try some spelling variations:
"image 2_mapping algorithm" » "image making algorithm" (Expand Search), "image scraping algorithm" (Expand Search), "image sampling algorithm" (Expand Search), "image 1_mapping algorithm" (Expand Search), "image 3_mapping algorithm" (Expand Search), "image 2_machine algorithm" (Expand Search)
"data modeling algorithm" » "data making algorithm" (Expand Search), "data modelling algorithm" (Expand Search), "data models algorithm" (Expand Search)
"relevant data algorithm" » "relevant data algorithms" (Expand Search), "relevant update algorithm" (Expand Search), "relevant atlas 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: (((("image 2_mapping algorithm") OR ("data modeling algorithm"))) OR ("relevant data algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"image 2_mapping algorithm\") OR (\"data modeling algorithm\"))) OR (\"relevant data algorithm\"))".
• Removing quotes may allow a broader search: (((( image 2_mapping algorithm ) OR ( data modeling algorithm ))) OR ( relevant data algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("image 2_mapping algorithm") OR ("data modeling algorithm"))) OR ("relevant data algorithm"))*.