Perhaps you should try some spelling variations:
"luong cong cong snippets" » "luong cong code snippets", "dung cong cong snippets", "trong cong cong snippets", "tong cong cong snippets", "luong cong dong snippets", "luong trong cong snippets", "luong dung cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"hanh java java snippets" » "hanh va java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hanh java java snippets") or ("luong cong cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh java java snippets") OR ("luong cong cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hanh java java snippets ) or ( luong cong cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh java java snippets") or ("luong cong cong snippets"))) or ("locating bug core snippets"))*.