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