Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon va hoan snippets" » "chon va hoan snippets", "buon va hoan snippets", "con va hoan snippets", "cuon van hoan snippets", "cuon va hoa snippets", "cuon va hoat 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: (((("cuon va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon va hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon va hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.