Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy hao anh snippets" » "duy phan anh snippets", "duy khac anh snippets", "duy thai anh snippets", "duy ha anh snippets", "duy cao anh snippets", "duy hai anh snippets", "duy hao anh 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: (((("duy hao anh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy hao anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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