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