Perhaps you should try some spelling variations:
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"an introduction in and programming" » "an introduction and and programming" (Expand search), "an introduction to and programming" (Expand search), "an introduction of and programming" (Expand search), "an introduction in _ programming" (Expand search), "an introduction in goal 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: (("an introduction in and programming") OR ("advanced python python coding programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an introduction in and programming\") OR (\"advanced python python coding programming\"))*".
• Removing quotes may allow a broader search: (( an introduction in and programming ) OR ( advanced python python coding programming ))*.