Perhaps you should try some spelling variations:
"da trong code snippets" » "da trong cong snippets", "da trong co snippets", "da trong che snippets", "dat trong code snippets", "dao trong code snippets", "dai trong code snippets", "da trong code slippers"
"dung va code snippets" » "dung va code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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: "((((\"da trong code snippets\") OR (\"dung va code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( da trong code snippets ) OR ( dung va code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da trong code snippets") OR ("dung va code snippets"))) OR ("locating bug code snippets"))*.