Perhaps you should try some spelling variations:
introduction conventional » introduction international, introduction conceptual, introduction regional
programming defining » programming designing, programming learning, programming reasoning
programming decision » programming decisions, programming recursion, programming design
basic truss » basics truss, basic struts, basic truth

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: introduction conventional ((programming defining) OR (programming decision)) basic truss~.
• Adding a wildcard symbol may retrieve word variants: introduction conventional ((programming defining) or (programming decision)) basic truss*.