Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"danh cua san snippets" » "doanh cua san snippets", "manh cua san snippets", "dinh cua san snippets", "danh cua ban snippets", "danh cua dan snippets", "danh ca san snippets"

Try widening your search to All Fields.

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