Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi cho cu snippets" » "voi chon cu snippets", "hoi cho cu snippets", "moi cho cu snippets", "voi cho chu snippets", "voi cho ca snippets", "voi cho tu 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: (((("voi cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi cho cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi cho cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.