Perhaps you should try some spelling variations:
"coder coder of signal processor" » "coder coder of signal processing" (Expand search), "coder decoder of signal processor" (Expand search), "code code of signal processor" (Expand search), "decoder codec of signal processor" (Expand search), "coder coder of signs processor" (Expand search), "coder code of signal processor" (Expand search), "coder codes of signal processor" (Expand search), "coder codex of signal processor" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 coder of signal processor") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder of signal processor\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder of signal processor ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder of signal processor") OR ("in python python python programming"))*.