Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"van thinh hoi snippets" » "van thanh hoi snippets", "van chinh hoi snippets", "van minh hoi snippets", "van trinh hoi snippets", "van thanh hoai snippets"
"locating bug core snippets" » "locating bug code 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: (((("using java code snippets") OR ("van thinh hoi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van thinh hoi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van thinh hoi snippets"))) or ("locating bug core snippets"))*.