Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dai nhat anh snippets" » "dang nhat anh snippets", "moi nhat anh snippets", "dai han anh snippets", "dai nhat hanh snippets", "dai nhat minh snippets", "dai nhat ban snippets", "dai nhat anh 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: (((("dai nhat anh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai nhat anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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