Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets", "python using raw slippers"
"dung vo code snippets" » "dung von code snippets", "dung vao code snippets", "dung voi code snippets", "dung vo code slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung vo code snippets") or ("python using raw snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vo code snippets") OR ("python using raw snippets"))) OR ("locating bugs code snippets")).
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