Perhaps you should try some spelling variations:
"using computer file reference array" » "using computer file reference area" (Expand search), "using computer file reference areas" (Expand search), "using computer file reference cardiac" (Expand search), "using computer five reference array" (Expand search), "using computer faire reference array" (Expand search), "using computer time reference array" (Expand search), "using computer aided reference array" (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: (("using computer file reference array") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computer file reference array\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( using computer file reference array ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computer file reference array") OR ("using coding python python programming"))*.