Perhaps you should try some spelling variations:
"coder decoder string language processing" » "coder decoder sharing language processing" (Expand search), "coder decoder sing language processing" (Expand search), "coder decoder during language processing" (Expand search), "coder decoder using language processing" (Expand search), "encoder decoder string language processing" (Expand search), "video decoder string language processing" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python 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 string language processing") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder string language processing\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder string language processing ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder string language processing") OR ("_ python python python programming"))*.