Perhaps you should try some spelling variations:
"van chuong han snippets" » "van phong han snippets", "van duong han snippets", "van hung han snippets", "van thuong han snippets", "van chung han snippets", "van phuong hanh snippets", "van chuong han 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van chuong han snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van chuong han snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( van chuong han snippets ) or ( dung java java snippets ))) or ( locating bug code snippets ))*.