Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan cac phan snippets" » "dan cac nhan snippets", "dan cao phan snippets", "dan cap phan snippets", "dan cach phan snippets", "dang cac phan snippets", "dan ca phan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan 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: (((("dan cac phan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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