Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"wei tran thu snippets" » "wei tan thu snippets", "thi tran thu snippets", "wei tang thu snippets", "wei tran thuy snippets", "wei tran thi snippets", "wei tuan thu snippets", "wei tran 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: (((("wei tran 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: (((("wei tran thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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