Perhaps you should try some spelling variations:
"an introduction python python programming" » "an introduction section python programming" (Expand search), "an introduction earthen python programming" (Expand search), "an introduction methods python programming" (Expand search), "an introduction pythons python programming" (Expand search), "an introduction piton python programming" (Expand search), "an introduction pitons python programming" (Expand search)
"basis function by coding program" » "basis functions by coding program" (Expand search), "basis function by cloning program" (Expand search), "basis function by loading program" (Expand search), "basis function by cooling programs" (Expand search), "basis function by codoping program" (Expand search), "basis function by cooling program" (Expand search), "basis function by coating program" (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: "((\"basis function by coding program\") OR (\"an introduction python python programming\"))~".
• Removing quotes may allow a broader search: (( basis function by coding program ) OR ( an introduction python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("basis function by coding program") OR ("an introduction python python programming"))*.