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