Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao ba don snippets" » "cao bai don snippets", "cao va don snippets", "cho ba don snippets", "cao la don snippets", "cao bat dong 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 ba don 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 ba don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao ba don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao ba don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.