Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan tai do snippets" » "hang tai do snippets", "van tai do snippets", "toan tai do snippets", "nhan thai do snippets", "nhan tai co snippets", "nhan tai so 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: (((("nhan tai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan tai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan tai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan tai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.