Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong hon cad snippets" » "cong hoan cad snippets", "cong hoa cad snippets", "cong lon cad snippets", "cong thong cad snippets", "cong chon cac snippets", "cong hanh cad 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: (((("cong hon cad snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hon cad snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hon cad snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hon cad snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.