Perhaps you should try some spelling variations:
"dung huong com snippets" » "dung thuong com snippets", "dung phuong com snippets", "dong huong com snippets", "dung huong co snippets", "dung huong cuoc snippets", "dung thuong con snippets"
"trinh cfd code snippets" » "trinh cad code snippets", "trinh co code snippets", "trinh cau code snippets", "trinh 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: (((("dung huong com snippets") or ("trinh cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung huong com snippets") OR ("trinh cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung huong com snippets ) or ( trinh cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung huong com snippets") or ("trinh cfd code snippets"))) or ("locating bug code snippets"))*.