Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van duong che snippets" » "van duong code snippets", "van dong che snippets", "van dung che snippets", "van phong che snippets", "van luong che snippets"
"using sat java snippets" » "using data java snippets", "using a java snippets", "using raw java snippets", "using sat 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: (((("using sat java snippets") OR ("van duong che snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using sat java snippets ) or ( van duong che snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using sat java snippets") or ("van duong che snippets"))) or ("locating bug core snippets"))*.