Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khac ton duc snippets" » "khac son duc snippets", "khac trong duc snippets", "khac tung duc snippets", "khac tran duc snippets", "khac tong cuc snippets", "khac tinh duc snippets", "khac ton 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 ton 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 ton duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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