Perhaps you should try some spelling variations:
"code cdc interface arduino programmable" » "code sic interface arduino programmable" (Expand search), "code nc interface arduino programmable" (Expand search), "code i2c interface arduino programmable" (Expand search), "code cpc interface arduino programmable" (Expand search), "code ctn interface arduino programmable" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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: "((\"code cdc interface arduino programmable\") OR (\"python coding python python programming\"))~".
• Removing quotes may allow a broader search: (( code cdc interface arduino programmable ) OR ( python coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("code cdc interface arduino programmable") OR ("python coding python python programming"))*.