Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh quan cao snippets" » "trinh quan code snippets", "tinh quang cao snippets", "trinh luat cao snippets", "trinh han cao snippets", "trinh quang cao snippets", "trinh quan cau snippets", "trinh juan cao 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 quan cao 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 quan cao snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh quan cao snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh quan cao snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.