Perhaps you should try some spelling variations:
"using computation in sio2 array" » "using computational in sio2 array" (Expand search), "using imputation in sio2 array" (Expand search), "using compilation in sio2 array" (Expand search), "using computation and sio2 array" (Expand search), "using computation of sio2 array" (Expand search), "using computation on sio2 array" (Expand search)
"using coupling python python programming" » "using coupling protein python programming" (Expand search), "running coupling python python programming" (Expand search), "using competing python python programming" (Expand search), "using coupled python python programming" (Expand search), "using coupling pythons python programming" (Expand search), "using coupling piton python programming" (Expand search), "using coupling pitons 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: "((\"using computation in sio2 array\") OR (\"using coupling python python programming\"))~".
• Removing quotes may allow a broader search: (( using computation in sio2 array ) OR ( using coupling python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation in sio2 array") OR ("using coupling python python programming"))*.