Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung trang do snippets" » "dung trang code snippets", "dung trong do snippets", "dung trung do snippets", "dung thang do snippets", "dung trang o snippets", "dung tang do snippets", "dung trang de snippets"
"dang java java snippets" » "dang va java 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: (((("dang java java snippets") or ("dung trang do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("dung trang do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( dung trang do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("dung trang do snippets"))) or ("locating bug core snippets"))*.