Perhaps you should try some spelling variations:
programming discretisation » programming discrimination, programming visualization
integration functions » integration functional, integrating functions, interactions functions
programming recursion » programming decision, programming session, programming decisions
basic struts » basic truth, basic strokes, basic study

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

• If you are trying to use Boolean operators, they must be ALL CAPS: integration functions ((programming recursion) OR (programming discretisation)) basic struts~.
• Adding a wildcard symbol may retrieve word variants: integration functions ((programming recursion) or (programming discretisation)) basic struts*.