Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao cau doc snippets" » "tao cu doc snippets", "tao cao doc snippets", "tao sau doc snippets", "tao chau doc snippets", "tao cau do snippets", "tao cau doi 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: (((("tao cau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao cau doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao cau doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao cau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.