Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat canh de snippets" » "luat doanh de snippets", "luat kinh de snippets", "luc canh de snippets", "luat canh dep snippets", "luat cach de snippets", "luat hanh de 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: (((("luat canh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat canh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat canh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat canh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.