Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan van anh slippers" » "tran van anh slippers", "tang van anh slippers", "luan van anh slippers", "tan van thanh slippers", "tan van minh slippers", "tan tuan anh slippers", "tan van anh slippery", "tan van anh grippers"
"locating bug code snippets" » "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: (((("tan van anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( tan van anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tan van anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.