Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang bot hoc snippets" » "dang do hoc snippets", "dang vat hoc snippets", "dang xet hoc snippets", "dang post hoc snippets", "dang bot khoa snippets", "dang buoc hoc 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 bot hoc 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 bot hoc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang bot hoc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang bot hoc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.