Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc su lon snippets" » "thuoc tu lon snippets", "thuc su lon snippets", "thuoc so lon snippets", "thuoc su luong 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: (((("thuoc su 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: (((("thuoc su lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc su lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc su lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.