Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khai hat do snippets" » "khai hai do snippets", "thai hat do snippets", "khai thac do snippets", "khai hat doi snippets", "khai hat dao snippets", "khai hat de 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: (((("khai hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khai hat do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai hat do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.