Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao xua cua snippets" » "dao xuan cua snippets", "dao cua cua snippets", "dao xu cua snippets", "dao xuat cua snippets", "dao qua cua snippets", "dao lua cua 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: (((("dao xua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao xua cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao xua cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao xua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.