Perhaps you should try some spelling variations:
"coder coding pubmed database program" » "coder coding pubmed database proposal" (Expand search), "coder coding pubmed database from" (Expand search), "coder coding pubmed database project" (Expand search), "coder using pubmed database program" (Expand search), "coder mining pubmed database program" (Expand search), "modern coding pubmed database program" (Expand search), "color coding pubmed database program" (Expand search), "odor coding pubmed database program" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons python 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: (("coder coding pubmed database program") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding pubmed database program\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding pubmed database program ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding pubmed database program") OR ("python coding python python programming"))*.