Perhaps you should try some spelling variations:
"dung cac dong snippets" » "dung cac code snippets", "luong cac dong snippets", "dung cho dong snippets", "dung tai dong snippets", "dung cac duong snippets", "dung cac cong snippets", "dung cac dang snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung cac dong snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
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