Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao nang da snippets" » "cao dang da snippets", "cam nang da snippets", "cao tang da snippets", "cao nang dau snippets", "cao nang dua snippets", "cao nang dan 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: (((("cao nang da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao nang da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao nang da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao nang da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.