Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau triet do snippets" » "cau trieu do snippets", "su triet do snippets", "cua triet do snippets", "cau trien do snippets", "cau triet hoc 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: (((("cau triet do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau triet do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau triet do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau triet do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.