Perhaps you should try some spelling variations:
"dung quang java snippets" » "dang quang java snippets", "luong quang java snippets", "dung luan java snippets", "dung quang va snippets"
"dung cuc thue snippets" » "dung cua thue snippets", "dung cu thue snippets", "dung cac thue 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 quang java snippets") or ("dung cuc thue snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quang java snippets") OR ("dung cuc thue snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quang java snippets ) or ( dung cuc thue snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quang java snippets") or ("dung cuc thue snippets"))) or ("locating bug code snippets"))*.