Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dan hoi lieu snippets" » "dan ho lieu snippets", "dan hoi hieu snippets", "dan hoi tieu snippets", "dan hoc lieu snippets", "dai hoi lieu snippets", "dang khoi lieu snippets", "dan hoi lieu 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan hoi lieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hoi lieu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hoi lieu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hoi lieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.