Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao phac do snippets" » "dao phat do snippets", "dao khau do snippets", "dao phu do snippets", "dao khac do snippets", "dao pham do snippets", "dao phan do 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 phac 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: (((("dao phac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao phac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao phac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.