Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dac tan anh snippets" » "duc tan anh snippets", "dac san anh snippets", "dai tan anh snippets", "dac tuan anh snippets", "dac tran anh snippets", "dac toan anh snippets", "dac tan 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: (((("dac tan 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: (((("dac tan anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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