Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"duc cac nuoc snippets" » "duc cap nuoc snippets", "duc hoc nuoc snippets", "duc dat nuoc snippets", "duoc cac nuoc snippets", "tuc cac nuoc snippets", "muc cac nuoc snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("duc cac nuoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc cac nuoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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