Perhaps you should try some spelling variations:
"coder coder in superconducting problems" » "coder coder in superconductivity problems" (Expand search), "coder coder in superconducting cables" (Expand search), "coder coder in superconductivity problem" (Expand search), "coder decoder in superconducting problems" (Expand search), "code code in superconducting problems" (Expand search), "decoder codec in superconducting problems" (Expand search), "coder code in superconducting problems" (Expand search), "coder codes in superconducting problems" (Expand search), "coder poder in superconducting problems" (Expand search)
"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)

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 in superconducting problems") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder in superconducting problems\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder in superconducting problems ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder in superconducting problems") OR ("on python python python programming"))*.