Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hien toc snippets" » "thuc hien toc snippets", "thi hien toc snippets", "thua thien toc snippets", "thu hien ton snippets", "thu hien thuc snippets", "thu hien tu 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: (((("thu hien toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu hien toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu hien toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu hien toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.