Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"viet dung che snippets" » "viet dung code snippets", "viet hung che snippets", "viet huong che snippets", "viet trung che snippets", "viet dung chet snippets", "viet duong che snippets", "viet dung cho 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: (((("using java java snippets") or ("viet dung che snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("viet dung che snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( viet dung che snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("viet dung che snippets"))) or ("locating bug core snippets"))*.