Perhaps you should try some spelling variations:
"dan thoan tran snippets" » "dan hoan tran snippets", "dan toan tran snippets", "dan tan tran snippets", "dan than tran snippets", "dan chan tran snippets", "dan thoan tran slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("dan thoan tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan thoan tran snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan thoan tran snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thoan tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.