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