Perhaps you should try some spelling variations:
"danh thanh ca snippets" » "dinh thanh ca snippets", "dang thanh ca snippets", "nhanh thanh ca snippets", "danh thanh cha snippets", "danh thanh cac snippets", "danh thanh ha 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: (((("danh thanh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh thanh ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh thanh ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh thanh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.