Perhaps you should try some spelling variations:
"vien trung raw slippers" » "vien truong raw slippers", "viet trung raw slippers", "mien trung raw slippers", "vien trung tran slippers", "vien trung tam slippers", "vien trung cap slippers", "vien trung raw slippery", "vien trung raw grippers"
"using java java snippets" » "using data java snippets"
"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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vien trung raw slippers") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vien trung raw slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vien trung raw slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vien trung raw slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.