Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"voi trong tan snippets" » "doi trong tan snippets", "hoi trong tan snippets", "vai trong tan snippets", "voi trong san snippets", "voi trong quan snippets", "voi trong cac 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 java java snippets\") OR (\"voi trong tan snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( voi trong tan snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("voi trong tan snippets"))) OR ("locating bug core snippets"))*.