Perhaps you should try some spelling variations:
"huong tiep noi snippets" » "phuong tien noi snippets", "duong tien noi snippets", "huong nghiep noi snippets", "huong tiep doi snippets", "huong tieng noi snippets", "huong tiep nuoc snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "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 java java snippets") or ("huong tiep noi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("huong tiep noi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( huong tiep noi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("huong tiep noi snippets"))) or ("locating bug code snippets"))*.