Perhaps you should try some spelling variations:
"tan thinh chao snippets" » "tan trinh chao snippets", "tan tinh chat snippets", "tan chinh cho snippets", "van thinh chao snippets", "tien thinh chao snippets", "tai chinh chao snippets"
"dung java java snippets" » "dung 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: (((("dung java java snippets") or ("tan thinh chao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tan thinh chao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tan thinh chao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tan thinh chao snippets"))) or ("locating bug code snippets"))*.