Perhaps you should try some spelling variations:
"coder coder genetic programming problem" » "coder coder genetic programming problems" (Expand search), "coder coded genetic programming problem" (Expand search), "coder modern genetic programming problem" (Expand search), "coder cedar genetic programming problem" (Expand search), "coder decoder genetic programming problem" (Expand search), "code code genetic programming problem" (Expand search), "decoder codec genetic programming problem" (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 genetic programming problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder genetic programming problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder genetic programming problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder genetic programming problem") OR ("on python python python programming"))*.