Perhaps you should try some spelling variations:
"code using arduino process problem" » "code using bruno process problem" (Expand search), "code using arduino problemas problem" (Expand search), "code using arduino process promoted" (Expand search), "made using arduino process problem" (Expand search), "coding using arduino process problem" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api python python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("code using arduino process problem") OR ("api pythons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code using arduino process problem\") OR (\"api pythons python python programming\"))".
• Removing quotes may allow a broader search: (( code using arduino process problem ) OR ( api pythons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code using arduino process problem") OR ("api pythons python python programming"))*.