Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung mot cay snippets" » "dung mo cay snippets", "dung co cay snippets", "dung dat cay snippets", "dung mot cai snippets", "dung mot cach snippets", "dung trot cay 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 mot cay 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 mot cay snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mot cay snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mot cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.