Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach mai cho snippets" » "bach mai co snippets", "bach lai cho snippets", "bach moi cho snippets", "sach mai cho snippets", "cach mai cho snippets", "bac mai cho 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: (((("bach mai cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bach mai cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach mai cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach mai cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.