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