Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"huong tran con snippets" » "huong tran code snippets", "huong dan con snippets", "quang tran con snippets", "chuong trinh con snippets", "huong tran cong snippets", "huong trang con snippets", "huong tren con 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: (((("huong tran con snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huong tran con snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( huong tran con snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong tran con snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.