Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tong ca chi snippets" » "trong ca chi snippets", "tong cac chi snippets", "tong cua chi snippets", "tong a chi snippets", "tong cu chi snippets", "tong la chi 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: (((("tong ca chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tong ca chi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong ca chi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong ca chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.