Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tang cua che snippets" » "mang cua che snippets", "hang cua che snippets", "tang luan che snippets", "tang cuu che snippets", "tang cua chu snippets", "tang cua cha 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: (((("tang cua che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang cua che snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cua che snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cua che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.