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