Perhaps you should try some spelling variations:
"using real java snippets" » "using metal java snippets", "using raw java snippets", "using real java slippers"
"van dung hai snippets" » "van dong hai snippets", "xay dung hai snippets", "tin dung hai snippets", "van dung tai snippets", "van dung ha snippets", "van dung sai snippets", "van dung hai 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: (((("using real java snippets") or ("van dung hai snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using real java snippets") OR ("van dung hai snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using real java snippets ) or ( van dung hai snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using real java snippets") or ("van dung hai snippets"))) or ("locating bug code snippets"))*.