Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau tang cua snippets" » "ha tang cua snippets", "hao tang cua snippets", "phap tang cua snippets", "hau mang cua snippets", "hau hang cua snippets", "hau tang luan 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: (((("hau tang 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: (((("hau tang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau tang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau tang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.