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"
"dung java java snippets" » "dung va java snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("da trong code snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"da trong code snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( da trong code snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))*.