Perhaps you should try some spelling variations:
"van trong code snippets" » "van trong cong snippets", "van trong co snippets", "van trong che snippets", "van truong code snippets", "vang trong code snippets", "ban trong code snippets", "van trong code slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van trong code snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van trong code snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( van trong code snippets ) or ( dung java java snippets ))) or ( locating bug code snippets ))*.