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