Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi phan do snippets" » "cho phan do snippets", "chinh phan do snippets", "chi nhanh do snippets", "chi phan bo snippets", "chi phan co snippets", "chi phan mo 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: (((("chi phan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi phan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi phan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi phan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.