Perhaps you should try some spelling variations:
"using cfd code snippets" » "using 3d code snippets", "using c code snippets"
"dung cac data snippets" » "luong cac data snippets", "dung cho data snippets", "dung tai data snippets", "dung cac dan snippets", "dung cac dang snippets", "dung cac dai snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using cfd code snippets") or ("dung cac data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cfd code snippets") OR ("dung cac data snippets"))) OR ("locating bug core snippets")).
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