Perhaps you should try some spelling variations:
"dung vbug code snippets" » "dung vung code snippets", "dung vbug code slippers", "dung vbung code snippets", "dung vbugs code snippets"
"luong cac thuc snippets" » "luong cuoc thuc snippets", "luong va thuc snippets", "luong tai thuc snippets", "luong cach thuc snippets", "luong cac thu snippets", "luong can thuc snippets", "luong cac thuc 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 vbug code snippets") or ("luong cac thuc snippets"))) or ("locating bug code snippets"))~.
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• Adding a wildcard symbol may retrieve word variants: (((("dung vbug code snippets") or ("luong cac thuc snippets"))) or ("locating bug code snippets"))*.