Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"huong cuu toan snippets" » "huong cua toan snippets", "huong cau toan snippets", "huong cuoc toan snippets", "huong cuu hoan snippets", "huong huu toan 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 ("huong cuu toan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("huong cuu toan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( huong cuu toan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("huong cuu toan snippets"))) or ("locating bug code snippets"))*.