Perhaps you should try some spelling variations:
"and computational python computer program" » "and computacional python computer program" (Expand search), "and computacional vpython computer program" (Expand search), "and computacionais python computer program" (Expand search), "_ computational python computer program" (Expand search), "and computational python computer programa" (Expand search)
"an introduction in feeding programas" » "an introduction in feeding programs" (Expand search), "an introduction in feeding program's" (Expand search), "an introduction in feeding programmes" (Expand search), "an introduction and feeding programas" (Expand search), "an introduction to feeding programas" (Expand search), "an introduction of feeding programas" (Expand search), "an introduction on feeding programas" (Expand search), "an introduction _ feeding programas" (Expand search), "an introduction in feeding programaas" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("an introduction in feeding programas") OR ("and computational python computer program"))~.
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• Removing quotes may allow a broader search: (( an introduction in feeding programas ) OR ( and computational python computer program ))*.