Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang hat doi snippets" » "dang nhat doi snippets", "dang phat doi snippets", "dang vat doi snippets", "dang hoat doi snippets", "dang thay doi snippets", "dang hang doi 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: (((("dang hat doi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hat doi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hat doi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hat doi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.