Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khac son duc snippets" » "khach san duc snippets", "khanh son duc snippets", "thai son duc snippets", "khac ton duc snippets", "khac hong duc snippets", "khac cong duc snippets", "khac son 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: (((("khac son 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: (((("khac son duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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