Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"han tong cuc snippets" » "han trong cuoc snippets", "han thong cua snippets", "han cong chuc snippets", "phan tong cuc snippets", "nhan tong cuc snippets", "hanh tong cuc 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: (((("han tong 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: (((("han tong cuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han tong cuc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han tong cuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.