Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"anh juan liu snippets" » "anh tuan liu snippets", "anh quan liu snippets", "anh xuan liu snippets", "anh juan luis snippets", "anh quan li snippets", "anh jin liu snippets", "anh juan liu 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 juan liu 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 juan liu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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