Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung gen cua snippets" » "dung nen cua snippets", "dung len cua snippets", "vung gen cua snippets", "dung gian cua snippets", "dung menh cua snippets", "dung benh cua 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 gen cua 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 gen cua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung gen cua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung gen cua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.