Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran khoa dat snippets" » "toan khoa dat snippets", "san khoa dat snippets", "nhan khoa dat snippets", "tran hoa dat snippets", "tran khoa dang snippets", "tran khoan dau snippets"
"locating bug core snippets" » "locating bug code 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 code snippets") or ("tran khoa dat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("tran khoa dat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran khoa dat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran khoa dat snippets"))) or ("locating bug core snippets"))*.