Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"va tuong dan slippers" » "va huong dan slippers", "va tung dan slippers", "va xuong dan slippers", "va thuong dan slippers", "va thong dan slippers", "xa truong dan slippers", "va tuong dan slippery", "va tuong dan 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: "((((\"using java java snippets\") OR (\"va tuong dan slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( va tuong dan slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("va tuong dan slippers"))) OR ("locating bug code snippets"))*.