Perhaps you should try some spelling variations:
"cao dong vat snippets" » "cao dang vat snippets", "lao dong vat snippets", "cao cong vat snippets", "cao dong va snippets", "cao dong von snippets", "cao dong ha snippets", "cao dong vat slippers"
"using low java snippets" » "using low 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: (((("cao dong vat snippets") or ("using low java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao dong vat snippets") OR ("using low java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao dong vat snippets ) or ( using low java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao dong vat snippets") or ("using low java snippets"))) or ("locating bug code snippets"))*.