Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh hang son snippets" » "trinh hang code snippets", "trinh han son snippets", "tranh hang son snippets", "trinh hanh son snippets", "trinh hoang son snippets", "trinh lang son snippets", "trinh hang ton 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 hang son 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 hang son snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh hang son snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh hang son snippets"))) or ("locating bug core snippets"))*.