Perhaps you should try some spelling variations:
theory programming » the programming (Expand search), the reprogramming (Expand search), their reprogramming (Expand search)
machine theory » teaching theory (Expand search)
coder machine » model machine (Expand search), cofee machine (Expand search), coffee machine (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (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: "(( coder coder machine theory programming ) OR ( _ python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coder machine theory programming ) OR ( _ python python python programming ))*.