Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuan dam de snippets" » "xuan nam de snippets", "xuan dan de snippets", "xuan dao de snippets", "xuan dai de snippets", "xuan dam me snippets", "xuan dam da 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: (((("xuan dam 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: (((("xuan dam de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuan dam de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuan dam de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.