Perhaps you should try some spelling variations:
"codigo javascript python contract program" » "codigo script python contract program" (Expand search), "codigo javascript python contrato programa" (Expand search), "codigo javascript python control program" (Expand search), "codigo javascript python control programs" (Expand search), "codigo javascript option contract program" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using 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: "((\"codigo javascript python contract program\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( codigo javascript python contract program ) OR ( using using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("codigo javascript python contract program") OR ("using using python python programming"))*.