Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doan phan che snippets" » "doan phan code snippets", "doanh phan che snippets", "toan phan che snippets", "dan phan che snippets", "doan han che snippets", "doan phap che snippets", "doan phan thi 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 ("doan phan che snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("doan phan che snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( doan phan che snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("doan phan che snippets"))) or ("locating bug core snippets"))*.