Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu luat can snippets" » "phap luat can snippets", "thue luat can snippets", "thau luat can snippets", "phu luat canh snippets", "phu luat dan snippets", "phu luat ban 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: (((("phu luat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu luat can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu luat can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu luat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.