Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran sy khai snippets" » "tran si khai snippets", "tran duy khai snippets", "tran quy khai snippets", "tran sy khac snippets", "tran sy hai snippets", "tran sy thai snippets", "tran sy khai 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: (((("tran sy khai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran sy khai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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