Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau hao cau snippets" » "khau cao cau snippets", "khau nhap cau snippets", "khau tai cau snippets", "khau tao cau snippets", "khau dao cau snippets", "khau hang cau 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: (((("khau hao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khau hao cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau hao cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau hao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.