Perhaps you should try some spelling variations:
"coder coder pic microcontroller based" » "coder coder pic controller based" (Expand search), "coder decoder pic microcontroller based" (Expand search), "code code pic microcontroller based" (Expand search), "decoder codec pic microcontroller based" (Expand search), "coder coder pico microcontroller based" (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.

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