Perhaps you should try some spelling variations:
"based computation using approximation theory" » "based computation using approximation of" (Expand search), "based computation ring approximation theory" (Expand search), "based computation using approximate theory" (Expand search), "based computation point approximation theory" (Expand search), "based computational using approximation theory" (Expand search), "based competition using approximation theory" (Expand search), "based compilation using approximation theory" (Expand search), "based computations using approximation theory" (Expand search), "based computation in approximation theory" (Expand search), "based composition using approximation theory" (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: "((\"based computation using approximation theory\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( based computation using approximation theory ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation using approximation theory") OR ("using coding python python programming"))*.