Perhaps you should try some spelling variations:
"sang cfd code snippets" » "using cfd code snippets", "sang cho code snippets", "sang che code snippets", "sang cfd core snippets"
"dung luan che snippets" » "dung luan chi snippets", "dung quan che snippets", "dung luan chat snippets"
"locating bug code snippets" » "locating bug core snippets", "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: (((("sang cfd code snippets") or ("dung luan che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sang cfd code snippets") OR ("dung luan che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cfd code snippets ) or ( dung luan che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cfd code snippets") or ("dung luan che snippets"))) or ("locating bug code snippets"))*.