Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dao thi tra snippets" » "do thi tra snippets", "dan thi tra snippets", "dang thi tra snippets", "dao thi tran snippets", "dao thi trac snippets", "dao thi ra snippets", "dao thi tra slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dao thi tra snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dao thi tra snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dao thi tra snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.