Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham hoa doi snippets" » "pham hoa doi snippets", "thanh hoa doi snippets", "pham khoa doi snippets", "tham hoa dai snippets", "tham hoc doi snippets", "tham xoa doi 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: (((("tham hoa doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham hoa doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham hoa doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham hoa doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.