Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"noi cong cac snippets" » "nguoi cong cac snippets", "tai cong cac snippets", "thi cong cac snippets", "noi cuong cac snippets", "noi cong tac snippets", "noi cong cau snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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 ("noi cong cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("noi cong cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( noi cong cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("noi cong cac snippets"))) or ("locating bug code snippets"))*.