Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung quan can snippets" » "dung quan code snippets", "dung quang can snippets", "dung luan can snippets", "luong quan can snippets", "dung quan cau snippets", "dung quan van snippets", "dung xuan can snippets"
"dung java java snippets" » "dung 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: (((("dung quan can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quan can snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung quan can snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quan can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.