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"
"he trung hoc snippets" » "he trung quoc snippets", "le trung hoc snippets", "he thong hoc snippets", "do trung hoc 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: (((("using data java snippets") OR ("he trung hoc snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( he trung hoc snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("he trung hoc snippets"))) or ("locating bugs code snippets"))*.