Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"kha tham hat snippets" » "khi tham hat snippets", "khai thac hat snippets", "khoa than hat snippets", "kha thai hat snippets", "kha tham khao snippets", "kha pham nhat snippets", "kha tham hat 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: (((("kha tham hat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kha tham hat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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