Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh phan cac snippets" » "trinh phan code snippets", "trinh han cac snippets", "trinh quan cac snippets", "thanh phan cac snippets", "trinh nhan cach snippets", "trinh phan dau snippets", "trinh phan lap 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: (((("trinh phan 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: (((("trinh phan cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh phan cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh phan cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.