Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tu dap luat snippets" » "tu phap luat snippets", "tu dan luan snippets", "tu dat luan snippets", "tu dat luat snippets", "tu lap luat snippets", "tu dau luat 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: "((((\"tu dap luat snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( tu dap luat snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tu dap luat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.