Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap quoc xo snippets" » "han quoc xo snippets", "nha nuoc xo snippets", "phap nuoc xo snippets", "nhap nuoc xo snippets", "nhap quoc co snippets", "nhap quoc lo 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 quoc xo 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 quoc xo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap quoc xo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap quoc xo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.