Perhaps you should try some spelling variations:
"van duong ta snippets" » "van dong ta snippets", "van dung ta snippets", "van phong ta snippets", "van duong tai snippets", "van duong tam snippets", "van duong tan snippets", "van duong ta 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 duong ta 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 duong ta snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( van duong ta snippets ) or ( dung java java snippets ))) or ( locating bug code snippets ))*.