Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"va duong che snippets" » "va duong code snippets", "va dong che snippets", "va dung che snippets", "va luong che snippets", "van duong che snippets", "va tuong che snippets", "va huong che 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 duong che 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 duong che snippets") OR ("using java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( va duong che snippets ) or ( using java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va duong che snippets") or ("using java java snippets"))) or ("locating bug core snippets"))*.