Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap co hoi snippets" » "nhap ca hoi snippets", "nha co hoi snippets", "nhan co hoi snippets", "nhap co hoc snippets", "nhap co loi 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 co hoi 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 co hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap co hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap co hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.