Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"wei tang loc snippets" » "wei tan loc snippets", "wei zhang loc snippets", "le tang loc snippets", "wei tang loi snippets", "wei mang loc snippets", "wei tang lop 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: (((("wei tang loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wei tang loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wei tang loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wei tang loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.