Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"vien trung ma slippery" » "vien truong ma slippery", "viet trung ma slippery", "mien trung ma slippery", "vien trung ha slippery", "vien trung va slippery", "vien trung tam slippery", "vien trung ma 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: "((((\"using java java snippets\") OR (\"vien trung ma slippery\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( vien trung ma slippery ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("vien trung ma slippery"))) OR ("locating bug code snippets"))*.