Perhaps you should try some spelling variations:
"dung doanh tran snippets" » "dung dan tran snippets", "dung dong tran snippets", "dung doanh tren snippets", "dung doanh thanh snippets", "dung doanh trong snippets", "dung doanh tran slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 doanh tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung doanh tran snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung doanh tran snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung doanh tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.