Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi loc cao snippets" » "thi loc cao snippets", "chon loc cao snippets", "chi duoc cao snippets", "chi hoc cao snippets", "chi toc cao snippets", "chi doc 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: (((("chi loc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi loc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi loc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi loc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.