Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khi doi ban snippets" » "khi dai ban snippets", "khi hoi ban snippets", "khi moi ban snippets", "khi di ban snippets", "khi do ban snippets", "khi dong ban snippets", "khi doi ban 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: (((("khi doi ban snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi doi ban snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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