Perhaps you should try some spelling variations:
"using cfd code snippets" » "using 3d code snippets", "using c code snippets", "using cfd core snippets", "using cfd code slippers"
"cong dung dat snippets" » "cuong dung dat snippets", "cong dong dat snippets", "cong luong dat snippets", "cong dung va snippets", "cong dung tai snippets", "cong dung dat 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.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using cfd code snippets") or ("cong dung dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cfd code snippets") OR ("cong dung dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using cfd code snippets ) or ( cong dung dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using cfd code snippets") or ("cong dung dat snippets"))) or ("locating bug code snippets"))*.