Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tri van dau snippets" » "thi van dau snippets", "tri va dau snippets", "trinh van dau snippets", "tri van dao snippets", "tri phan dau 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: (((("python using java snippets") OR ("tri van dau snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tri van dau snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tri van dau snippets"))) or ("locating bug core snippets"))*.