Perhaps you should try some spelling variations:
"coder linear precoding arduino programmable" » "coder linear processing arduino programmable" (Expand search), "coder linear recoding amino programmable" (Expand search), "code linear precoding arduino programmable" (Expand search), "order linear precoding arduino programmable" (Expand search), "model linear precoding arduino programmable" (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.

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