Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hanh tot snippets" » "dang hanh tot snippets", "dan khanh tot snippets", "dan thanh tot snippets", "dan hanh noi snippets", "dan hanh tu snippets", "dan hanh 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: (((("dan hanh tot 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 hanh tot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hanh tot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hanh tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.