Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi anh quan snippets" » "doi anh quang snippets", "doi anh tuan snippets", "doi anh xuan snippets", "doi hanh quan snippets", "doi canh quan snippets", "doi sanh quan snippets", "doi anh quan 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: (((("doi anh quan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi anh quan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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