Perhaps you should try some spelling variations:
"dong tinh java snippets" » "dong kinh java snippets", "dong tin java snippets", "cong tinh java snippets", "dong trinh java snippets", "dong think java snippets", "dong tinh va snippets", "dong tinh java slippers"
"huong cfd code snippets" » "huong cua code snippets", "huong c code snippets", "huong cau code snippets", "huong cfd code slippers", "huong cfd core snippets"
"locating bug code snippets" » "locating bug code slippers", "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: (((("dong tinh java snippets") or ("huong cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tinh java snippets") OR ("huong cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tinh java snippets ) or ( huong cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tinh java snippets") or ("huong cfd code snippets"))) or ("locating bug code snippets"))*.