Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc von ngan snippets" » "duc toan ngan snippets", "duc vu ngan snippets", "duc von luan snippets", "duc ton ngan snippets", "duc van ngan snippets", "duc con ngan snippets", "duc von ngan 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: (((("duc von ngan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc von ngan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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