Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung cac san snippets" » "luong cac san snippets", "dung cho san snippets", "dung tai san snippets", "dung cac dan snippets", "dung cac van snippets", "dung cac ban snippets"

Try widening your search to All Fields.

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