Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"how van hau snippets" » "hoc van hau snippets", "ho van hau snippets", "hoa van hau snippets", "how van ha snippets", "how van hai snippets", "how van dau snippets", "how van hau 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: (((("how van hau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("how van hau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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