Perhaps you should try some spelling variations:
"modelos tobit python python coding" » "modelo tobit python python coding" (Expand search), "modelos probit python python coding" (Expand search), "modelo cobit python python coding" (Expand search), "modelos tobit pythons python coding" (Expand search), "modelos tobit piton python coding" (Expand search), "modelos tobit pitons python coding" (Expand search), "modelos tobit python python codigo" (Expand search), "modelos tobit python action coding" (Expand search), "modelos tobit python python code" (Expand search), "modelos tool python python coding" (Expand search), "modelos logic python python coding" (Expand search)
"nip in python python programming" » "nip in pythons python programming" (Expand search), "nip in piton python programming" (Expand search), "nip in pitons python programming" (Expand search), "nip _ python python programming" (Expand search), "unip in python python programming" (Expand search), "hip in python python programming" (Expand search), "lip in 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: "((\"modelos tobit python python coding\") OR (\"nip in python python programming\"))~".
• Removing quotes may allow a broader search: (( modelos tobit python python coding ) OR ( nip in python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("modelos tobit python python coding") OR ("nip in python python programming"))*.