Perhaps you should try some spelling variations:
"coherent precoding computing algorithm programming" » "coherent precoding computing algorithms programming" (Expand search), "coherent precoding computing algorithm processing" (Expand search), "coherent precoding combining algorithm programming" (Expand search), "coherent providing computing algorithm programming" (Expand search), "coherent processing computing algorithm programming" (Expand search), "coherent precoding routing algorithm programming" (Expand search), "coherent precoding computer algorithm programming" (Expand search), "coherent precoding computer algorithms 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: (("coherent precoding computing algorithm programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coherent precoding computing algorithm programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coherent precoding computing algorithm programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coherent precoding computing algorithm programming") OR ("on python python python programming"))*.