Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap ca cha snippets" » "nhap ca chua snippets", "nhap cua cha snippets", "nhap ca cham snippets", "phap ca cha snippets", "nhan ca cha snippets", "nhat ca cha 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 ca cha 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 ca cha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap ca cha snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap ca cha snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.