Perhaps you should try some spelling variations:
"upon computation using sampling errors" » "upon computations using sampling errors" (Expand search), "upon computation in sampling errors" (Expand search), "upon composition using sampling errors" (Expand search), "on computation using sampling errors" (Expand search), "human computation using sampling errors" (Expand search), "upon complexation using sampling errors" (Expand search), "upon computation using sampling error" (Expand search), "upon computation using sampling effort" (Expand search), "upon computation using spelling errors" (Expand search), "upon computation using subsampling errors" (Expand search), "upon computation using saline errors" (Expand search), "upon computation using samples errors" (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: "((\"upon computation using sampling errors\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( upon computation using sampling errors ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("upon computation using sampling errors") OR ("using coding python python programming"))*.