Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"manh tan su snippets" » "manh toan su snippets", "manh tuan su snippets", "minh tan su snippets", "manh dan su snippets", "manh van su snippets", "manh ban su snippets", "manh tan su slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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