Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung kem san snippets" » "vung kem san snippets", "dong kem san snippets", "dung ket san snippets", "dung ke san snippets", "dung dem san snippets", "dung kiem sat snippets"

Try widening your search to All Fields.

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