Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau nhat de snippets" » "cau hat de snippets", "cap nhat de snippets", "cau nha de snippets", "cau nhat ve snippets", "cau nhat le snippets", "cau chat deo 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: (((("cau nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.