Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dong doi san snippets" » "duong doi san snippets", "dung doi san snippets", "dong hoi san snippets", "dong doi sanh snippets", "dong di san snippets", "dong doi ban snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("dong doi san snippets"))) or ("locating bug core snippets"))~.
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