Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran hoai ve snippets" » "tran hai ve snippets", "tran hoan ve snippets", "than thoai ve snippets", "tran hoi ve snippets", "tran hoai va snippets", "tran loai ve 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 hoai ve 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 hoai ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hoai ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hoai ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.