Perhaps you should try some spelling variations:
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"and conventional code cloning programs" » "and conventional mode cloning programs" (Expand search), "and conventional model cloning programs" (Expand search), "and conventional corn cloning programs" (Expand search), "and conventional code cloning program" (Expand search), "and conventional code cleaning programs" (Expand search), "and conventional code cooling programs" (Expand search), "and conventional coffee cloning programs" (Expand search), "and conventional code blending programs" (Expand search), "and conventional voice cloning programs" (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 conventional code cloning programs") OR ("space applications in python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and conventional code cloning programs\") OR (\"space applications in python programming\"))".
• Removing quotes may allow a broader search: (( and conventional code cloning programs ) OR ( space applications in python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and conventional code cloning programs") OR ("space applications in python programming"))*.