Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh xuan cua snippets" » "anh tuan cua snippets", "anh quan cua snippets", "thanh xuan cua snippets", "anh xuat cua snippets", "anh xua cua 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: (((("anh xuan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh xuan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh xuan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh xuan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.