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