Perhaps you should try some spelling variations:
"coder coder teaching routing protocols" » "coder coder teaching routine protocols" (Expand search), "coder coder teaching promoting protocols" (Expand search), "coder coder teaching computing protocols" (Expand search), "coder code teaching routing protocols" (Expand search), "coder poder teaching routing protocols" (Expand search), "coder model teaching routing protocols" (Expand search), "coder decoder teaching routing protocols" (Expand search), "code code teaching routing protocols" (Expand search), "decoder codec teaching routing protocols" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (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 teaching routing protocols\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder teaching routing protocols ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder teaching routing protocols") OR ("api python python python programming"))*.