Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap thai do snippets" » "nhap thap do snippets", "nhanh thai do snippets", "nhap khau do snippets", "nhap thay doi snippets", "nhap thai den 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: (((("nhap thai 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: (((("nhap thai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap thai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap thai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.