Perhaps you should try some spelling variations:
on documentation » of documentation (Expand search), and documentation (Expand search), _ documentation (Expand search)
coding string » coding using (Expand search), sewing string (Expand search), comparing string (Expand search)
python python » pythons python (Expand search), pitons python (Expand search), pytm python (Expand search)
coder coding » modern coding (Expand search), color coding (Expand search), odor coding (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with python (Expand search)
string on » strings on (Expand search), string in (Expand search), string of (Expand search)
api piton » api python (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 coding string on documentation ) OR ( api piton python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coding string on documentation ) OR ( api piton python python programming ))*.