Perhaps you should try some spelling variations:
"cong cua cau snippets" » "cong cu cau snippets", "dong cua cau snippets", "huong cua cau snippets", "cong chua cau snippets", "cong cua cac snippets", "cong cua chu snippets"
"hang va java snippets" » "hang java java snippets", "nang va java snippets", "dang va java snippets", "hanh va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("hang va java snippets") or ("cong cua cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang va java snippets") OR ("cong cua cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang va java snippets ) or ( cong cua cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang va java snippets") or ("cong cua cau snippets"))) or ("locating bug code snippets"))*.