Perhaps you should try some spelling variations:
"precoding usando python robot programming" » "precoding usando python robots programming" (Expand search), "precoding usando python goal programming" (Expand search), "precoding usando python cone programming" (Expand search), "precoding and python robot programming" (Expand search), "precoding using python robot programming" (Expand search), "preceding and python robot programming" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("precoding usando python robot programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"precoding usando python robot programming\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( precoding usando python robot programming ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("precoding usando python robot programming") OR ("python coding python python programming"))*.