Perhaps you should try some spelling variations:
"improvements routing algorithm" » "improvements cosine algorithm" (Expand Search), "improvement routing algorithm" (Expand Search)
"data using algorithm" » "data cosine algorithm" (Expand Search)
"element jaya algorithm" » "elements jaya algorithm" (Expand Search), "element maya algorithm" (Expand Search), "element aya algorithm" (Expand Search), "element jana algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"improvements routing algorithm\") OR (\"element jaya algorithm\"))) OR (\"data using algorithm\"))~".
• Removing quotes may allow a broader search: (((( improvements routing algorithm ) OR ( element jaya algorithm ))) OR ( data using algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("improvements routing algorithm") OR ("element jaya algorithm"))) OR ("data using algorithm"))*.