Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung giac mo snippets" » "dung giao mo snippets", "dung giai mo snippets", "dung giam mo snippets", "dung giac do snippets", "dung giac mong snippets", "dung gian mot 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: (((("dung giac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung giac mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung giac mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung giac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.