Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc dang do snippets" » "toc mang do snippets", "toi dang do snippets", "thuoc dang do snippets", "toc nang doc snippets", "toc dung doi snippets", "toc dang duc 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: (((("toc dang 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: (((("toc dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.