Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"han van hai snippets" » "phan van hai snippets", "nhan van hai snippets", "hanh van hai snippets", "han van ha snippets", "han van chat snippets", "han van hanh snippets", "han van hai 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: (((("han van hai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han van hai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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