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"
"nhan dan va snippets" » "phan dau va snippets", "gian dan va snippets", "nhan tai va snippets", "nhan doan va snippets", "nhan dan ca snippets", "nhan ban va snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nhan dan va snippets") OR ("using raw java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nhan dan va snippets\") OR (\"using raw java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( nhan dan va snippets ) OR ( using raw java snippets ))) OR ( locating bug core snippets ))*.