Perhaps you should try some spelling variations:
"using rate code snippets" » "using waste code snippets", "using data code snippets", "using raw code snippets", "using rate core snippets", "using rate code slippers"
"dung trinh dan snippets" » "dung tinh dan snippets", "dong trinh dan snippets", "cong trinh dan snippets", "dung trinh han snippets", "dung trinh van snippets", "dung trinh san snippets", "dung trinh dan slippers"
"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: (((("using rate code snippets") or ("dung trinh dan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using rate code snippets") OR ("dung trinh dan snippets"))) OR ("locating bug code snippets")).
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