Perhaps you should try some spelling variations:
"by computation using solving problems" » "by computations using solving problems" (Expand search), "by computation in solving problems" (Expand search), "by composition using solving problems" (Expand search), "by computational using solving problems" (Expand search), "of computation using solving problems" (Expand search), "_ computation using solving problems" (Expand search), "by computation using evolving problems" (Expand search), "by computation posing solving problems" (Expand search), "by computation using moving problems" (Expand search)
"using code from python programming" » "using code from pathogen programming" (Expand search), "using code from anthony programming" (Expand search), "using cone from python programming" (Expand search), "using co from python programming" (Expand search), "using co2 from python programming" (Expand search), "using code form 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: "((\"by computation using solving problems\") OR (\"using code from python programming\"))~".
• Removing quotes may allow a broader search: (( by computation using solving problems ) OR ( using code from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computation using solving problems") OR ("using code from python programming"))*.