Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dan hoc manh snippets" » "dan hoc anh snippets", "dan hoc hanh snippets", "dan hoc danh snippets", "van hoc manh snippets", "dan toc manh snippets", "dai hoc manh snippets", "dan hoc manh 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: (((("dan hoc manh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hoc manh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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