Perhaps you should try some spelling variations:
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python python python programming" (Expand search)
"coder coder pubmed database from" » "coder decoder pubmed database from" (Expand search), "code code pubmed database from" (Expand search), "decoder codec pubmed database from" (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 coder pubmed database from") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pubmed database from\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pubmed database from ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pubmed database from") OR ("in python python python programming"))*.