Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan keo cho snippets" » "nhan khoa cho snippets", "nhan kiet cho snippets", "nhan tao cho snippets", "nhan ke cho snippets", "nhan keo chi snippets", "nhan khoe cho 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 keo cho 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 keo cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan keo cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan keo cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.