Perhaps you should try some spelling variations:
conventions opencv » conventions on (Expand search), conventional open (Expand search)
coding conventions » reading conventions (Expand search), writing conventions (Expand search), social conventions (Expand search)
python coding » python codigo (Expand search), action coding (Expand search), python code (Expand search)
coding python » codigo python (Expand search), codigos python (Expand search), using python (Expand search)
coder python » codigo python (Expand search), compra python (Expand search)

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

• Removing quotes may allow a broader search: (( coder python coding python programming ) OR ( coding conventions opencv python programming ))~.