Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"va danh cua slippers" » "va doanh cua slippers", "va manh cua slippers", "va dinh cua slippers", "va dan cua slippers", "va hanh cua slippers", "va danh cua slippery", "va danh cua 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.

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