Perhaps you should try some spelling variations:
"coder coder rotating control program" » "coder coder rotation control program" (Expand search), "coder coder getting control program" (Expand search), "coder coder taking control program" (Expand search), "coder under rotating control program" (Expand search), "coder counter rotating control program" (Expand search), "coder closed rotating control program" (Expand search), "coder decoder rotating control program" (Expand search), "code code rotating control program" (Expand search), "decoder codec rotating control program" (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 coder rotating control program") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder rotating control program\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder rotating control program ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder rotating control program") OR ("on python python python programming"))*.