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