Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tang cho chat snippets" » "trang cho chat snippets", "sang cho chat snippets", "hang cho chat snippets", "tang cao chat snippets", "tang cho phat snippets", "tang chao chao 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: (((("tang cho chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang cho chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cho chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cho chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.