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