Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu song da snippets" » "lieu cong da snippets", "lieu huong da snippets", "lieu thong da snippets", "lieu song xa snippets", "lieu song va snippets", "lieu song cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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