Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap san chi snippets" » "nha san chi snippets", "phap san chi snippets", "nham san chi snippets", "nhap van chi snippets", "nhap luan chi snippets", "nhap toan chi 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 san chi 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 san chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap san chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.