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