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