Perhaps you should try some spelling variations:
"coder code _ microcontroller in" » "coder code _ microcontrollers in" (Expand search), "coder code _ microcontroller and" (Expand search), "coder code _ microcontroller pic" (Expand search), "code code _ microcontroller in" (Expand search), "modern code _ microcontroller in" (Expand search), "color code _ microcontroller in" (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 code _ microcontroller in") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder code _ microcontroller in\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder code _ microcontroller in ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder code _ microcontroller in") OR ("on python python python programming"))*.