Perhaps you should try some spelling variations:
"coder coder functions chess problem" » "coder power functions chess problem" (Expand search), "coder order functions chess problem" (Expand search), "coder colour functions chess problem" (Expand search), "coder coder functions across problem" (Expand search), "coder coder functions chords problem" (Expand search), "coder coder functions case problem" (Expand search), "coder coder functions class problem" (Expand search), "coder coder functions access problems" (Expand search), "coder coder functions class problems" (Expand search), "coder decoder functions chess problem" (Expand search), "code code functions chess problem" (Expand search), "decoder codec functions chess problem" (Expand search)
"api pitons python python programming" » "api pitons pythons python programming" (Expand search), "api pitons piton python programming" (Expand search), "api pitons pytm python programming" (Expand search), "api citons python python programming" (Expand search), "api pitoni python python programming" (Expand search), "api pitoes python 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 functions chess problem") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder functions chess problem\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder functions chess problem ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder functions chess problem") OR ("api pitons python python programming"))*.