Perhaps you should try some spelling variations:
"coder coder spatial indexing problem" » "coder coder social indexing problem" (Expand search), "coder coder spatial ordering problem" (Expand search), "coder coder spatial increasing problem" (Expand search), "coder coder spatial modelling problem" (Expand search), "coder order spatial indexing problem" (Expand search), "coder over spatial indexing problem" (Expand search), "coder under spatial indexing problem" (Expand search), "coder decoder spatial indexing problem" (Expand search), "code code spatial indexing problem" (Expand search), "decoder codec spatial indexing 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.

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