Perhaps you should try some spelling variations:
"vi kinh vat snippets" » "vi sinh vat snippets", "vi dinh vat snippets", "vi kinh va snippets", "va kinh vat snippets", "vi tinh vat snippets", "vi kinh vat slippers"
"using _ java snippets" » "using _ 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi kinh vat snippets") OR ("using _ java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( vi kinh vat snippets ) or ( using _ java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi kinh vat snippets") or ("using _ java snippets"))) or ("locating bug code snippets"))*.