Perhaps you should try some spelling variations:
"anh thuc chan snippets" » "anh thuc can snippets", "anh thuc nhan snippets", "anh thuc phan snippets", "am thuc chan snippets", "dan thuc chan snippets", "anh tu chan 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: (((("anh thuc chan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh thuc chan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh thuc chan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh thuc chan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.