Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan tao di snippets" » "nhan tai di snippets", "nhan dan di snippets", "nhan va di snippets", "nhan tao dai snippets", "nhan tao doi snippets", "nhan tao de 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 tao di 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 tao di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan tao di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan tao di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.