Perhaps you should try some spelling variations:
"by computation using complex problem" » "by computations using complex problem" (Expand search), "by computation in complex problem" (Expand search), "by composition using complex problem" (Expand search), "by computation using complex problems" (Expand search), "by computational using complex problem" (Expand search), "of computation using complex problem" (Expand search), "_ computation using complex problem" (Expand search), "by computation housing complex problem" (Expand search), "by computation using computer problem" (Expand search)
"using codigo python python programming" » "using codigo pythons python programming" (Expand search), "using codigo piton python programming" (Expand search), "using codigo pitons python programming" (Expand search), "using indigo python python programming" (Expand search), "using coding python python programming" (Expand search), "using codium 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: (("by computation using complex problem") OR ("using codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computation using complex problem\") OR (\"using codigo python python programming\"))".
• Removing quotes may allow a broader search: (( by computation using complex problem ) OR ( using codigo python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("by computation using complex problem") OR ("using codigo python python programming"))*.