Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh nhan de snippets" » "thanh nhan de snippets", "danh nhan de snippets", "anh nhan de snippets", "hanh nhat de snippets", "hanh nhan ve snippets", "hanh nhan dieu 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: (((("hanh nhan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh nhan de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh nhan de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh nhan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.