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 dung he snippets" » "duong dung he snippets", "ung dung he snippets", "dung ung he snippets", "dung dung cho 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 dung he 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 dung he snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quang java snippets ) or ( dung dung he snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quang java snippets") or ("dung dung he snippets"))) or ("locating bug code snippets"))*.