Perhaps you should try some spelling variations:
"can trinh java snippets" » "can tranh java snippets", "dan trinh java snippets", "van trinh java snippets", "can trinh java slippers"
"dong hung code snippets" » "dong huong code snippets", "dang hung code snippets", "cong hung code snippets", "dong hung 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: (((("can trinh java snippets") or ("dong hung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can trinh java snippets") OR ("dong hung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can trinh java snippets ) or ( dong hung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can trinh java snippets") or ("dong hung code snippets"))) or ("locating bug code snippets"))*.