Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cong cac snippets" » "van cong code snippets", "van dong cac snippets", "van phong cac snippets", "phan cong cac snippets", "van cuong cac snippets", "van cong tac snippets", "van cong cau snippets"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java 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 raw java snippets") OR ("van cong cac snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using raw java snippets\") OR (\"van cong cac snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( using raw java snippets ) OR ( van cong cac snippets ))) OR ( locating bug core snippets ))*.