Perhaps you should try some spelling variations:
"using computation and and microarray" » "using computational and and microarray" (Expand search), "using imputation and and microarray" (Expand search), "using compilation and and microarray" (Expand search), "using computation of and microarray" (Expand search), "using computation and dna microarray" (Expand search), "using computation and dna microarrays" (Expand search), "using computation and cdna microarray" (Expand search), "using computation and an microarray" (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 computation and and microarray") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation and and microarray\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( using computation and and microarray ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computation and and microarray") OR ("using coding python python programming"))*.