Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap xua cua snippets" » "nhap xa cua snippets", "nhap ca cua snippets", "phap xu cua snippets", "nhap xuat cua snippets", "nhap qua cua snippets", "nhap lua cua 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 xua cua 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 xua cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap xua cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap xua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.