Perhaps you should try some spelling variations:
"and modulation of precoder program" » "and modulation of proder program" (Expand search), "and modulation of recovery program" (Expand search), "and modulation of precoce programa" (Expand search), "and modulation of precoded program" (Expand search), "and modulation of premodern program" (Expand search), "and modulation to precoder program" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("and modulation of precoder program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and modulation of precoder program\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( and modulation of precoder program ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and modulation of precoder program") OR ("using coding python python programming"))*.