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