Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"van trinh xac slippery" » "van thinh xac slippery", "van tinh xac slippery", "dan trinh xac slippery", "van trinh xay slippery", "van trinh cac slippery", "van trinh xuan slippery", "van trinh xac 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van trinh xac slippery\") OR (\"using java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( van trinh xac slippery ) OR ( using java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van trinh xac slippery") OR ("using java java snippets"))) OR ("locating bug code snippets"))*.