Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tri hong snippets" » "dung tai hong snippets", "dung tren hong snippets", "nhung tri hong snippets", "dung tri thong snippets", "dung tri phong snippets", "dung thi hong 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 hong 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 hong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tri hong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tri hong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.