Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cu chan snippets" » "dan chu chan snippets", "dan cau chan snippets", "dan cu nhan snippets", "dan cua chan snippets", "dan ca chan snippets", "dan su chan 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: (((("dan cu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan cu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.