Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dao cac phan snippets" » "dao cac nhan snippets", "dao cao phan snippets", "dao cap phan snippets", "do cac phan snippets", "sao cac phan snippets", "tao cac phan snippets"

Try widening your search to All Fields.

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