Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang hung cao snippets" » "dang hung code snippets", "dang quang cao snippets", "manh hung cao snippets", "dang cong cao snippets", "dang phung cao snippets", "dang hung dao snippets", "dang nung 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 java java snippets") or ("dang hung cao snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dang hung cao snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dang hung cao snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dang hung cao snippets"))) or ("locating bug core snippets"))*.