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