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