Perhaps you should try some spelling variations:
"trinh dung code snippets" » "trinh dung cong snippets", "trinh dung co snippets", "trinh dung de snippets", "trinh dung code slippers"
"chung cfd code snippets" » "chung cu code snippets", "chung cua code snippets", "chung chi code snippets", "chung cfd code slippers"
"locating bug code 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: (((("trinh dung code snippets") or ("chung cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung code snippets") OR ("chung cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung code snippets ) or ( chung cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung code snippets") or ("chung cfd code snippets"))) or ("locating bug code snippets"))*.