Perhaps you should try some spelling variations:
"va phan code snippets" » "va phan cong snippets", "va phan co snippets", "va phan che snippets", "van phan code snippets", "va phat code snippets", "va phap code snippets"
"dung cac code slippers" » "luong cac code slippers", "dung cho code slippers", "dung tai code slippers", "dung cac cong slippers", "dung cac co slippers", "dung cac che slippers"
"locating bug code snippets" » "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: (((("dung cac code slippers") or ("va phan code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac code slippers") OR ("va phan code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung cac code slippers ) or ( va phan code snippets ))) or ( locating bug code snippets ))*.