Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc dap cung snippets" » "doc dap ung snippets", "doc dap nhung snippets", "doc lap chung snippets", "doc lap cung snippets", "doc dao cung snippets", "do dap cung 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: (((("doc dap cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc dap cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc dap cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc dap cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.