Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khon tai duc snippets" » "khoan tai duc snippets", "khoa tai duc snippets", "khoe tai duc snippets", "khon tai cuc snippets", "khon mai duc snippets", "khon tai du snippets", "khon tai 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: (((("khon tai 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: (((("khon tai duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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