Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"anh van khoa snippets" » "anh van hoa snippets", "anh von khoa snippets", "anh san khoa snippets", "anh va khoa snippets", "thanh van khoa snippets", "doanh van khoa snippets", "anh van khoa 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: (((("anh van khoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh van khoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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