Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu va voi snippets" » "khau va voi snippets", "thu va voi snippets", "khu vu voi snippets", "khu va doi snippets", "khu va vi snippets", "khu va vo 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: (((("khu va 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: (((("khu va voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu va voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu va voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.