Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"vi trong doi snippets" » "vai trong doi snippets", "voi trong doi snippets", "bi trong doi snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi trong doi snippets") OR ("using data java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( vi trong doi snippets ) or ( using data java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi trong doi snippets") or ("using data java snippets"))) or ("locating bugs code snippets"))*.