Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ky che snippets" » "nhan y che snippets", "nhat ky che snippets", "than ky che snippets", "nhan ke che snippets", "nhan ky cho snippets", "nhan ty che 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 ky che 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 ky che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ky che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ky che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.