Perhaps you should try some spelling variations:
"va duong code snippets" » "va duong co snippets", "va duong cong snippets", "va duong che snippets", "van duong code snippets", "va tuong code snippets", "va huong code snippets", "va duong code slippers"
"using _ java snippets" » "using _ 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: (((("using _ java snippets") or ("va duong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using _ java snippets") OR ("va duong code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using _ java snippets ) or ( va duong code snippets ))) or ( locating bug code snippets ))*.