Perhaps you should try some spelling variations:
"dung cac thuc snippets" » "dung cach thuc snippets", "dung cac thu snippets", "dung can thuc snippets", "luong cac thuc snippets", "dung cho thuc snippets", "dung tai thuc snippets", "dung cac thuc slippers"
"dung vbugss code snippets" » "dung vbugss core snippets", "dung vbugss code slippers", "dung vbungss code snippets", "dung vbugsss code snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung vbugss code snippets") or ("dung cac thuc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vbugss code snippets") OR ("dung cac thuc snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("dung vbugss code snippets") or ("dung cac thuc snippets"))) or ("locating bug code snippets"))*.