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