Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap lam da snippets" » "phap luat da snippets", "phap luan da snippets", "phap nham da snippets", "phap lam dau snippets", "phap lam dao snippets", "phap lam dat 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: (((("phap lam 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: (((("phap lam da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap lam da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap lam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.