Perhaps you should try some spelling variations:
perl programming » cell programming (Expand search), period programming (Expand search), fetal programming (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code detect » code detection (Expand search), pode detectar (Expand search), node detected (Expand search)
detect perl » detect sperm (Expand search), detect her (Expand search), detect early (Expand search)
code code » code cdc (Expand search)

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

• Removing quotes may allow a broader search: (( code code detect perl programming ) OR ( _ python python python programming ))~.