Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc lam cach snippets" » "luc lam sach snippets", "luc lam gach snippets", "luc loi cach snippets", "luc luan cach snippets", "duoc lam cach 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: (((("luc lam cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc lam cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc lam cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc lam cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.