Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa doi ma snippets" » "hoa doi ma snippets", "khoa hoi ma snippets", "khoa noi ma snippets", "khoa doi va snippets", "khoa doi xa snippets", "khoa di ma snippets", "khoa doi ma 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 doi ma 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 doi ma snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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