Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua voi cho snippets" » "chua noi cho snippets", "cua vi cho snippets", "chua o cho snippets", "chua voi chon snippets", "chua hoi cho snippets", "chua moi 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: (((("chua voi 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: (((("chua voi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua voi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua voi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.