Perhaps you should try some spelling variations:
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)
"coder coding and computer program" » "modern coding and computer program" (Expand search), "color coding and computer program" (Expand search), "odor coding and computer program" (Expand search), "coder coding _ computer program" (Expand search), "coder coding rna computer program" (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: (("coder coding and computer program") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding and computer program\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding and computer program ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding and computer program") OR ("on python python python programming"))*.