Perhaps you should try some spelling variations:
"_ computation using optical programming" » "_ computation using logical programming" (Expand search), "_ computation using pascal programming" (Expand search), "_ computation using musical programming" (Expand search), "_ computations using optical programming" (Expand search), "_ computation in optical programming" (Expand search), "_ composition using optical programming" (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: "((\"_ computation using optical programming\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( _ computation using optical programming ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ computation using optical programming") OR ("using coding python python programming"))*.