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