Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ben cong lon snippets" » "bien cong lon snippets", "ban cong lon snippets", "bon cong lon snippets", "ben cong luong snippets", "ben cong dong snippets", "ben cong cong 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: (((("ben cong lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ben cong lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ben cong lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ben cong lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.