Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu nhap hoa snippets" » "thu ha hoa snippets", "khu nha hoa snippets", "thu nhan hoa snippets", "thu phap hoa snippets", "thu nha hoa 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: (((("thu nhap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu nhap hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu nhap hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu nhap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.