Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc giac do snippets" » "duoc giao do snippets", "hoc giao do snippets", "hoc giai do snippets", "doc gia do snippets", "doc giac mo snippets", "doc giac duoc 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 giac do 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 giac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc giac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc giac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.