Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc bai cua snippets" » "luc tai cua snippets", "luc bat cua snippets", "luc dai cua snippets", "luc ban cua snippets", "luc bai ca 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 bai cua 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 bai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc bai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc bai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.