Perhaps you should try some spelling variations:
"using real java snippets" » "using metal java snippets", "using raw java snippets", "using real java slippers"
"vi trong tan snippets" » "vi trong san snippets", "vi trong quan snippets", "vi trong cac snippets", "vai trong tan snippets", "voi trong tan snippets", "bi trong tan snippets", "vi trong tan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vi trong tan snippets") or ("using real java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi trong tan snippets") OR ("using real java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vi trong tan snippets ) or ( using real java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vi trong tan snippets") or ("using real java snippets"))) or ("locating bug code snippets"))*.