Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luc van phu snippets" » "luoc van phu snippets", "luu van phu snippets", "duc van phu snippets", "luc san phu snippets", "luc van phung snippets", "luc van phan snippets", "luc van phu 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: (((("luc van phu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc van phu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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