Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"viet hat dam snippets" » "viet nhat dam snippets", "viet ha dam snippets", "viet dat dam snippets", "viet hat dan snippets", "viet hat dao snippets", "viet hat dum snippets", "viet hat dam 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: (((("viet hat dam snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet hat dam snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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