Perhaps you should try some spelling variations:
"coder coder crowd sensing software" » "coder coder crowd ensino software" (Expand search), "coder coder crowd assessing software" (Expand search), "coder coder crowd scanning software" (Expand search), "coder decoder crowd sensing software" (Expand search), "code code crowd sensing software" (Expand search), "decoder codec crowd sensing software" (Expand search), "coder soccer crowd sensing software" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 crowd sensing software") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder crowd sensing software\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder crowd sensing software ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder crowd sensing software") OR ("_ python python python programming"))*.