Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap nhat de snippets" » "nhap nhan de snippets", "nhap khau de snippets", "phap phat de snippets", "nhap nhat ve snippets", "nhap nhat le snippets", "nhap chat deo 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 nhat de 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 nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.