Perhaps you should try some spelling variations:
"based computation using peg program" » "based computational using peg program" (Expand search), "based competition using peg program" (Expand search), "based compilation using peg program" (Expand search), "based computations using peg program" (Expand search), "based computation in peg program" (Expand search), "based composition using peg program" (Expand search), "based computation using pg program" (Expand search), "based computation using bag program" (Expand search), "based computation using dog program" (Expand search), "based computation using pcr program" (Expand search), "based computation using p program" (Expand search), "based computation using pb program" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 peg program\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( based computation using peg program ) OR ( in python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation using peg program") OR ("in python python python programming"))*.