Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao danh cu snippets" » "dao doanh cu snippets", "do danh cu snippets", "dao dan cu snippets", "dao danh cau snippets", "dao danh tu snippets", "dao dinh cu 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 danh 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: (((("dao danh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao danh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao danh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.