Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"van trinh vat slippers" » "van thinh vat slippers", "van tinh vat slippers", "dan trinh vat slippers", "van trinh van slippers", "van trinh luat slippers", "van sinh vat slippers", "van trinh vat slippery", "van trinh vat grippers"
"locating bug code snippets" » "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: (((("van trinh vat slippers") OR ("using java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( van trinh vat slippers ) or ( using java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van trinh vat slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.