Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi nhan cua snippets" » "tri nhan cua snippets", "thi than cua snippets", "thi ngan cua snippets", "thi nhat cua snippets", "thi nhan luc snippets", "thi nhan su 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: (((("thi nhan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi nhan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi nhan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi nhan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.