Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao phai con snippets" » "cao khai con snippets", "cao phan con snippets", "nao phai con snippets", "cao phai co snippets", "cao hai con snippets", "cao phau con 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 phai con 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 phai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao phai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.