Perhaps you should try some spelling variations:
"random optimization by precoder program" » "and optimization by precoder program" (Expand search), "handover optimization by precoder program" (Expand search), "region optimization by precoder program" (Expand search), "random optimization by proder program" (Expand search), "random optimization by recovery program" (Expand search), "random optimization by precoce programa" (Expand search), "random optimization _ precoder program" (Expand search), "random optimization and precoder program" (Expand search), "random optimization based precoder program" (Expand search), "random optimization to precoder program" (Expand search), "random optimization by precocene 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: "((\"random optimization by precoder program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( random optimization by precoder program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("random optimization by precoder program") OR ("using coding python python programming"))*.