Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"vi luong tu snippets" » "dai luong tu snippets", "van luong tu snippets", "hai luong tu snippets", "vi luong tai snippets", "vi luong thi snippets", "vi luong tin 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 luong tu snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( vi luong tu snippets ) or ( using java java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi luong tu snippets") or ("using java java snippets"))) or ("locating bug core snippets"))*.