Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"den voi thuc snippets" » "den noi thuc snippets", "den choi thuc snippets", "den cuoi thuc snippets", "dien voi thuc snippets", "den coi thuc snippets", "den vai thuc snippets", "den voi thuc 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: (((("den voi thuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den voi thuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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