Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan anh thu snippets" » "luan danh thu snippets", "tuan anh thu snippets", "lan anh thu snippets", "luan anh thuc snippets", "luan anh thuy snippets", "luan anh tu snippets", "luan anh 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: (((("luan anh 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: (((("luan anh thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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