Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chau han tap snippets" » "chau nhan tap snippets", "chau phan tap snippets", "chu han tap snippets", "chau han tai snippets", "chau toan tap snippets", "chau nhan tai snippets", "chau han tap 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: (((("chau han tap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau han tap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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