Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets"
"van tai va snippets" » "von tai va snippets", "van tuan va snippets", "van thai va snippets", "van mai va snippets", "van tri va 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: (((("van tai va snippets") OR ("using raw java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( van tai va snippets ) or ( using raw java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van tai va snippets") or ("using raw java snippets"))) or ("locating bug core snippets"))*.