Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc biet de snippets" » "thuc viet de snippets", "thuoc viet de snippets", "thuc hien de snippets", "thuc biet den snippets", "thuc biet ve snippets", "thuc biet dac 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: (((("thuc biet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc biet de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc biet de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc biet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.