Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"va tuong luan snippets" » "va truong luan snippets", "va tong luan snippets", "va thong luan snippets", "va thuong luan snippets", "xa truong luan snippets"
"using java java snippets" » "using data java snippets"

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

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