Perhaps you should try some spelling variations:
"vi trung tran slippers" » "vi trung tuan slippers", "vi trung thanh slippers", "vi trung tam slippers", "va trung tran slippers", "viet trung tran slippers", "vien trung tran slippers", "vi trung tran slippery", "vi trung tran grippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing 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: (((("vi trung tran slippers") or ("using data java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi trung tran slippers") OR ("using data java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vi trung tran slippers ) or ( using data java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vi trung tran slippers") or ("using data java snippets"))) or ("locating bug code snippets"))*.