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