Perhaps you should try some spelling variations:
"locating dung co snippets" » "locating bug co snippets", "locating dung cho snippets", "locating dung cong snippets", "locating dung cua snippets"
"using java java snippets" » "using data java snippets"
"vi ung code snippets" » "vi ung co snippets", "vi bug code snippets", "va ung code snippets", "vi luong code snippets", "vi trung code 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 ung code snippets") OR ("using java java snippets"))) OR ("locating dung co snippets"))~.
• Removing quotes may allow a broader search: (((( vi ung code snippets ) or ( using java java snippets ))) or ( locating dung co snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi ung code snippets") or ("using java java snippets"))) or ("locating dung co snippets"))*.