Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan rui thu snippets" » "luan chi thu snippets", "van rui thu snippets", "luan thi thu snippets", "luan gui thu snippets", "luan rui zhu snippets", "luan rung thu snippets", "luan rui thu 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: (((("luan rui thu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan rui thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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