Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"vi minh dan slippery" » "vi minh danh slippery", "vi minh doan slippery", "vi binh dan slippery", "vi sinh dan slippery", "vi tinh dan slippery", "vu minh dan slippery", "vi minh dan 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: "((((\"vi minh dan slippery\") OR (\"using java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( vi minh dan slippery ) OR ( using java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi minh dan slippery") OR ("using java java snippets"))) OR ("locating bug code snippets"))*.