Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"va trung lop snippets" » "va truong lop snippets", "va trung lap snippets", "va trung long snippets", "ba trung lop snippets", "ha trung lop snippets", "va thuong lop snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"va trung lop snippets\") OR (\"using java java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( va trung lop snippets ) OR ( using java java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va trung lop snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets"))*.