Perhaps you should try some spelling variations:
"_ computational coder control problems" » "_ computational code control problems" (Expand search), "_ computational codes control problems" (Expand search), "_ computational model control problems" (Expand search), "_ computational coder control program" (Expand search), "_ computational poder control problems" (Expand search), "_ computational encoder control problems" (Expand search), "_ computational poder controle problems" (Expand search)
"usando python python python programming" » "usando pythons python python programming" (Expand search), "usando piton python python programming" (Expand search), "usando pitons 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: (("_ computational coder control problems") OR ("usando python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ computational coder control problems\") OR (\"usando python python python programming\"))".
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• Adding a wildcard symbol may retrieve word variants: (("_ computational coder control problems") OR ("usando python python python programming"))*.