Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viet a mot snippets" » "viet ha mot snippets", "viet ca mot snippets", "viet o mot snippets", "viet va mot snippets", "viet la mot 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 a mot 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 a mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet a mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet a mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.