Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van dong cac snippets" » "van dong code snippets", "van duong cac snippets", "van dong bac snippets", "van dung cac 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 dong 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 dong cac snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( using raw java snippets ) OR ( van dong cac snippets ))) OR ( locating bug core snippets ))*.