Perhaps you should try some spelling variations:
"coder material parameters _ programmer" » "poder material parameters _ programmer" (Expand search), "cover materials parameters _ programmer" (Expand search), "powder material parameters _ programmer" (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: (("coder material parameters _ programmer") OR ("using coping python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder material parameters _ programmer\") OR (\"using coping python python programming\"))".
• Removing quotes may allow a broader search: (( coder material parameters _ programmer ) OR ( using coping python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder material parameters _ programmer") OR ("using coping python python programming"))*.