Perhaps you should try some spelling variations:
"image 1_using algorithm" » "image cosine algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"data relating algorithm" » "data regulating algorithm" (Expand Search), "data relations algorithm" (Expand Search), "data relative 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 relating algorithm") OR ("image 1_using algorithm"))) OR ("element method algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data relating algorithm\") OR (\"image 1_using algorithm\"))) OR (\"element method algorithm\"))".
• Removing quotes may allow a broader search: (((( data relating algorithm ) OR ( image 1_using algorithm ))) OR ( element method algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data relating algorithm") OR ("image 1_using algorithm"))) OR ("element method algorithm"))*.