Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua bach hoi snippets" » "cua bac hoi snippets", "cua banh hoi snippets", "cua khach hoi snippets", "cua sach hoi snippets", "cua bach hoa snippets", "cua bach khoa 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: (((("cua bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua bach hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua bach hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.