Perhaps you should try some spelling variations:
"cuong cac cac snippets" » "luong cac cac snippets", "cong cac cac snippets", "trong cac cac snippets", "cuong cac cach snippets", "cuong ca cac snippets", "cuong cac bac snippets"
"hang java java snippets" » "hang 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: (((("cuong cac cac snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong cac cac snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong cac cac snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong cac cac snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.