Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao khau cao snippets" » "dao phat cao snippets", "dao huu cao snippets", "cau khau cao snippets", "dao khau hao snippets", "dao nha cao snippets", "dao khau tai 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 khau cao 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 khau cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao khau cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khau cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.