Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thu van nhan snippets" » "thu van phan snippets", "thu van thanh snippets", "thu danh nhan snippets", "thuc van nhan snippets", "thuy van nhan snippets", "tu van nhan snippets", "thu van nhan 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: (((("thu van nhan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu van nhan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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