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