Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi thoi su snippets" » "doi thoai su snippets", "moi thoi su snippets", "do thoi su snippets", "doi khoi su snippets", "doi thong su snippets", "doi thoi rua 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: (((("doi thoi su snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( doi thoi su snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi thoi su snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.