Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"dung cau chu snippets" » "dung chau chu snippets", "dung cu chu snippets", "dung cac chu snippets", "dung cau chiu snippets", "dung ca chu 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 cau 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 cau chu snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cau chu snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cau chu snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.