Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"doi duc tan snippets" » "do duc tan snippets", "doi duy tan snippets", "oi duc tan snippets", "doi duc tran snippets", "doi duc toan snippets", "doi duc than 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 duc tan snippets") OR ("python using java snippets"))) OR ("locating bug code slippers"))~.
• Removing quotes may allow a broader search: (((( doi duc tan snippets ) or ( python using java snippets ))) or ( locating bug code slippers ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi duc tan snippets") or ("python using java snippets"))) or ("locating bug code slippers"))*.