Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran le duan slippers" » "tuan le duan slippers", "tran lien duan slippers", "tran lam duan slippers", "tran le xuan slippers", "tran le dan slippers", "tran le doan slippers", "tran le duan slippery", "tran le duan grippers"
"locating bug code snippets" » "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 le duan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran le duan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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