Perhaps you should try some spelling variations:
"dung cuan code snippets" » "dung luan code snippets", "dung quan code snippets", "dung xuan code snippets", "dung luann code snippets", "dung chon code snippets", "dung cuan code slippers"
"dung cua code snippets" » "dung luan code snippets", "dung cho code snippets", "dung cua cong snippets", "dung cua co snippets", "dung cfd code snippets", "dung cua code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung cuan code snippets") or ("dung cua code snippets"))) or ("locating bug code snippets"))~.
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• Adding a wildcard symbol may retrieve word variants: (((("dung cuan code snippets") or ("dung cua code snippets"))) or ("locating bug code snippets"))*.