Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lon van phan snippets" » "lon van phong snippets", "lon van thanh snippets", "lon luan phan snippets", "long van phan snippets", "lo van phan snippets", "lon va phan snippets", "lon van phan 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: (((("lon van phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon van phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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