Perhaps you should try some spelling variations:
"coder coder indexing technical problems" » "coder coder including technical problems" (Expand search), "coder coder indexing techniques problems" (Expand search), "coder coder modelling technical problems" (Expand search), "coder coder indexing technical progress" (Expand search), "coder coder indexing ethical problems" (Expand search), "coder coder indexing technical project" (Expand search), "coder cordel indexing technical problems" (Expand search), "coder video indexing technical problems" (Expand search), "coder 3dr indexing technical problems" (Expand search), "coder decoder indexing technical problems" (Expand search), "code code indexing technical problems" (Expand search), "decoder codec indexing technical 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 indexing technical problems") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder indexing technical problems\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder indexing technical problems ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder indexing technical problems") OR ("on python python python programming"))*.