Perhaps you should try some spelling variations:
matching algorithm » sampling algorithm (Expand Search), tracking algorithm (Expand Search)
element matching » element mapping (Expand Search), employment matching (Expand Search), element modeling (Expand Search)
elemental mining » elemental mapping (Expand Search), elemental iron (Expand Search), elemental zinc (Expand Search)
mining algorithm » learning algorithm (Expand Search), means algorithm (Expand Search)

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

• Removing quotes may allow a broader search: (( element matching algorithm ) OR ( elemental mining algorithm )).