Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dan hanh duc snippets" » "dang hanh duc snippets", "dan khanh duc snippets", "dan thanh duc snippets", "dan hanh duoc snippets", "dan anh duc snippets", "dan hanh dua snippets", "dan hanh duc 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: (((("dan hanh duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hanh duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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