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