Perhaps you should try some spelling variations:
"dung think java snippets" » "dung thang java snippets", "dung tin java snippets", "dung thanh java snippets", "dung trinh java snippets"
"trong cac cong snippets" » "trong cua cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("trong cac cong snippets") or ("dung think java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong cac cong snippets") OR ("dung think java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong cac cong snippets ) or ( dung think java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong cac cong snippets") or ("dung think java snippets"))) or ("locating bug code snippets"))*.