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