Perhaps you should try some spelling variations:
"an implementation and precoder program" » "an implementation of precoder program" (Expand search), "and implementation and precoder program" (Expand search), "_ implementation and precoder program" (Expand search), "an implementation and proder program" (Expand search), "an implementation and recovery program" (Expand search), "an implementation and precoce programa" (Expand search), "an implementation and precore program" (Expand search), "an implementation and decoder program" (Expand search), "an implementation and precede 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an implementation and precoder program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( an implementation and precoder program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("an implementation and precoder program") OR ("using coding python python programming"))*.