Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau tao cac snippets" » "khau tai cac snippets", "khau cao cac snippets", "khau hao cac snippets", "khau tao bac snippets", "khau tao cao 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 tao cac 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 tao cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau tao cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau tao cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.