Perhaps you should try some spelling variations:
"and computation using complex program" » "and computations using complex program" (Expand search), "and computation in complex program" (Expand search), "and composition using complex program" (Expand search), "and computational using complex program" (Expand search), "of computation using complex program" (Expand search), "and computation using simplex program" (Expand search), "and computation using complex programmes" (Expand search), "and computation using complex prograded" (Expand search), "and computation housing complex program" (Expand search), "and computation using computer program" (Expand search)
"testing tool python python programming" » "testing tool pythons python programming" (Expand search), "testing tool piton python programming" (Expand search), "testing tool pitons python programming" (Expand search), "testing tools python python programming" (Expand search), "testing to python python programming" (Expand search), "teaching tool 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: (("and computation using complex program") OR ("testing tool python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computation using complex program\") OR (\"testing tool python python programming\"))".
• Removing quotes may allow a broader search: (( and computation using complex program ) OR ( testing tool python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and computation using complex program") OR ("testing tool python python programming"))*.