Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tri cach snippets" » "dung tai cach snippets", "dung tren cach snippets", "nhung tri cach snippets", "dung tri cac snippets", "dung tri khach snippets", "dung loi cach 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 tri cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tri cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tri cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tri cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.