Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phi duc hien snippets" » "phi duc chien snippets", "phi duc thien snippets", "phi duc tien snippets", "pham duc hien snippets", "phan duc hien snippets", "chi duoc hien snippets", "phi duc hien 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: (((("phi duc hien snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi duc hien snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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