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