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