Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap con cac snippets" » "nhap cong cac snippets", "nhap mon cac snippets", "nhan con cac snippets", "nhap chon cac snippets", "nhap co cac 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 con cac 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 con cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap con cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap con cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.