Perhaps you should try some spelling variations:
"tinh chat cong snippets" » "tinh chat chong snippets", "tinh chat long snippets", "tinh chat song snippets", "trinh chat cong snippets", "dinh chat cong snippets", "minh chat 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: (((("tinh chat 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: (((("tinh chat cong snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh chat cong snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh chat cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.