Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"tra trinh dat snippets" » "qua trinh dat snippets", "tra trinh vat snippets", "tra trinh da snippets", "tra trinh dan snippets", "tra trinh dat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tra trinh dat snippets\") OR (\"dung java java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( tra trinh dat snippets ) OR ( dung java java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tra trinh dat snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets"))*.