Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao hoach de snippets" » "dao hanh de snippets", "dao doanh de snippets", "dao hoan de snippets", "dao hoach do snippets", "dao hoach du snippets", "dao hoach he 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 hoach de 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 hoach de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao hoach de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao hoach de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.