Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dat hoc vinh snippets" » "dat hoc sinh snippets", "dat hoc kinh snippets", "dat hoc chinh snippets", "dai hoc vinh snippets", "vat hoc vinh snippets", "dan hoc vinh snippets", "dat hoc vinh 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: (((("dat hoc vinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat hoc vinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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