Perhaps you should try some spelling variations:
"an introduction python in program" » "an introduction section in program" (Expand search), "an introduction earthen in program" (Expand search), "an introduction methods in program" (Expand search), "an introduction python in programs" (Expand search), "an introduction python and program" (Expand search), "an introduction python _ program" (Expand search), "an introduction python of program" (Expand search)
"advanced python programming coding program" » "advanced python programming using program" (Expand search), "advanced python programming code program" (Expand search), "advanced python programming computing program" (Expand search), "advanced method programming coding program" (Expand search), "advanced path programming coding program" (Expand search), "advanced symphony programming coding program" (Expand search), "advanced python programming cloning program" (Expand search), "advanced python programming loading program" (Expand search), "advanced python programming cooling programs" (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: "((\"an introduction python in program\") OR (\"advanced python programming coding program\"))~".
• Removing quotes may allow a broader search: (( an introduction python in program ) OR ( advanced python programming coding program ))~.
• Adding a wildcard symbol may retrieve word variants: (("an introduction python in program") OR ("advanced python programming coding program"))*.