Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"duoc lam cach snippets" » "duoc pham cach snippets", "duoc ly cach snippets", "duoc li cach snippets", "duoc lam sach snippets", "duoc lam gach snippets", "duoc loi cach 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: (((("duoc lam cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc lam cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc lam cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc lam cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.