Perhaps you should try some spelling variations:
perl programming » cell programming (Expand search), period programming (Expand search), fetal programming (Expand search)
modern methods » modeling methods (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder modern » powder modern (Expand search), code moderne (Expand search), under modern (Expand search)
methods perl » methods pre (Expand search), methods pem (Expand search), methods part (Expand search)

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

• Removing quotes may allow a broader search: (( coder modern methods perl programming ) OR ( _ python python python programming )).