Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"biet noi cac snippets" » "bien doi cac snippets", "dien noi cac snippets", "biet voi cac snippets", "biet hoi cac snippets", "biet nom cac 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: (((("biet noi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("biet noi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( biet noi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("biet noi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.