Perhaps you should try some spelling variations:
"coder decoder java robot programming" » "coder decoder java robots programming" (Expand search), "coder decoder java goal programming" (Expand search), "coder decoder java cone programming" (Expand search), "encoder decoder java robot programming" (Expand search), "video decoder java robot programming" (Expand search), "coder codes java robot programming" (Expand search), "coder xcode java robot programming" (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 decoder java robot programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder java robot programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder java robot programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder java robot programming") OR ("on python python python programming"))*.