Perhaps you should try some spelling variations:
"coder coder string learning object" » "coder coder sharing learning object" (Expand search), "coder coder during learning object" (Expand search), "coder coder strips learning object" (Expand search), "coder coder string learning objects" (Expand search), "coder cordel string learning object" (Expand search), "coder closed string learning object" (Expand search), "coder modelo string learning object" (Expand search), "coder decoder string learning object" (Expand search), "code code string learning object" (Expand search), "decoder codec string learning object" (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 string learning object") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder string learning object\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder string learning object ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder string learning object") OR ("on python python python programming"))*.