Perhaps you should try some spelling variations:
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"tan van code snippets" » "tan van de snippets", "tan van hoe snippets", "tan van cong snippets", "tran van code snippets", "tang van code snippets", "luan van code snippets", "tan van 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: "((((\"tan van code snippets\") OR (\"dung trong code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( tan van code snippets ) OR ( dung trong code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tan van code snippets") OR ("dung trong code snippets"))) OR ("locating bug code snippets"))*.