Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao gioi con snippets" » "dao nguoi con snippets", "bao gio con snippets", "co gioi con snippets", "dao gioi co snippets", "dao gioi bon snippets", "dao gioi can 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: (((("dao gioi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao gioi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao gioi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao gioi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.