Perhaps you should try some spelling variations:
"dang quang java snippets" » "dung quang java snippets", "nang quan java snippets", "dang hung java snippets", "dang quang va snippets"
"trong cac cong snippets" » "trong cua cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dang quang java snippets") or ("trong cac cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang quang java snippets") OR ("trong cac cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang quang java snippets ) or ( trong cac cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang quang java snippets") or ("trong cac cong snippets"))) or ("locating bug code snippets"))*.