Perhaps you should try some spelling variations:
"cong dung code snippets" » "cuong dung code snippets", "cong dong code snippets", "cong luong code snippets", "cong dung cong snippets", "cong dung co snippets", "cong dung de snippets", "cong dung code slippers"
"van ranh java snippets" » "van trinh java snippets", "van anh java snippets", "van hanh java snippets", "van manh java snippets", "van ranh 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: (((("van ranh java snippets") or ("cong dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ranh java snippets") OR ("cong dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ranh java snippets ) or ( cong dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ranh java snippets") or ("cong dung code snippets"))) or ("locating bug code snippets"))*.