Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung hieu cac snippets" » "dung hieu code snippets", "dong hieu cac snippets", "dung tieu cac snippets", "trung hieu cac snippets", "dung hieu luc snippets", "dung hieu va snippets", "dung hieu van 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 hieu cac 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 hieu cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung hieu cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hieu cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.