Perhaps you should try some spelling variations:
"dung xuan cuc snippets" » "duong xuan cuc snippets", "dung luan cuc snippets", "dung quan cuc snippets", "dung xuan duc snippets", "dung xuan ruc snippets", "dung xuat cuc snippets"
"dung java java snippets" » "dung va java 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 xuan cuc 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 xuan cuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung xuan cuc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung xuan cuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.