Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"do trong cac snippets" » "do trong code snippets", "dot trong cac snippets", "dao trong cac snippets", "doi trong cac snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using data java snippets\") OR (\"do trong cac snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using data java snippets ) OR ( do trong cac snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") OR ("do trong cac snippets"))) OR ("locating bug core snippets"))*.