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