Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thao he snippets" » "thi thao he snippets", "thu thap he snippets", "thuc thai he snippets", "thu tao he snippets", "thu thao hoc snippets", "thu thao h.t 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 thao he 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 thao he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thao he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thao he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.