Perhaps you should try some spelling variations:
"dang thi cong snippets" » "hoang thi cong snippets", "dang khoi cong snippets", "dang tai cong snippets", "dang thien cong snippets"
"cong cfd code snippets" » "cong cu code snippets", "cong cua code snippets", "cong cau code snippets", "cong cfd core 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: (((("dang thi cong snippets") or ("cong cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang thi cong snippets") OR ("cong cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang thi cong snippets ) or ( cong cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang thi cong snippets") or ("cong cfd code snippets"))) or ("locating bug code snippets"))*.