Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh toan da snippets" » "trinh toan code snippets", "tinh toan da snippets", "thanh toan da snippets", "trinh han da snippets", "trinh toan dam snippets", "trinh toan dai snippets", "trinh toan dau 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 toan da 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 toan da snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh toan da snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh toan da snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.