Perhaps you should try some spelling variations:
"dung toan cac snippets" » "dung doanh cac snippets", "dung thang cac snippets", "dung thanh cac snippets", "dung toan cao snippets", "dung toan cau snippets", "dung toan xac snippets"
"duong va java snippets" » "duong van java snippets", "dung va java snippets", "luong va java snippets", "duong java 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: (((("duong va java snippets") or ("dung toan cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong va java snippets") OR ("dung toan cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong va java snippets ) or ( dung toan cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong va java snippets") or ("dung toan cac snippets"))) or ("locating bug code snippets"))*.