Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dong va ngan snippets" » "dung va ngan snippets", "dong ha ngan snippets", "luong va ngan snippets", "dong van ngan snippets", "dong vu ngan snippets", "dong va ngay snippets", "dong va 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: (((("dong va 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: (((("dong va ngan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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