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