Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa cam van snippets" » "khoan cam van snippets", "khoa kham van snippets", "khoa ma van snippets", "khoa cac van snippets", "khoa cao van snippets", "khoa nam van snippets", "khoa cam van 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: (((("khoa cam van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa cam van snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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