Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cuu vi trinh snippets" » "cuu vi tinh snippets", "cuu va trinh snippets", "cuu viet trinh snippets", "cuu vai trinh snippets", "cuu voi trinh snippets", "cua vi trinh snippets"

Try widening your search to All Fields.

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