Perhaps you should try some spelling variations:
"va truong code snippets" » "va truong cd snippets", "va truong co snippets", "va truong cong snippets", "van truong code snippets", "xa truong code snippets", "va thuong code snippets"
"locating bug core snippets" » "locating bug code snippets"
"using a java snippets" » "using _ java snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va truong code snippets") OR ("using a java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( va truong code snippets ) or ( using a java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va truong code snippets") or ("using a java snippets"))) or ("locating bug core snippets"))*.