Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"dung cac chu snippets" » "luong cac chu snippets", "dung cho chu snippets", "dung tai chu snippets", "dung cac thu snippets", "dung cac che snippets", "dung cac khu 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: (((("dung cac chu snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac chu snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac chu snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac chu snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.