Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung doan cap snippets" » "dung doan code snippets", "dung doanh cap snippets", "dung dan cap snippets", "dung toan cap snippets", "dung doanh cao snippets", "dung dan ca snippets", "dung toan cao 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 doan cap 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 doan cap snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung doan cap snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung doan cap snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.