Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban trong so snippets" » "bai trong so snippets", "ban tuong so snippets", "ben trong so snippets", "ban trong co snippets", "ban trong su snippets", "ban trong o 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: (((("ban trong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban trong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban trong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban trong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.