Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"danh cho ham snippets" » "danh cho hai snippets", "danh cho tam snippets", "danh chon tham snippets", "doanh cho ham snippets", "dan cho ham snippets", "dinh cho ham snippets", "danh cho ham 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: (((("danh cho ham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh cho ham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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