Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hiem xa can snippets" » "hiem xa cao snippets", "hiem xa ban snippets", "hiem xa tan snippets", "nhiem xa can snippets", "hieu xa can snippets", "hien xa can 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: (((("hiem xa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hiem xa can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hiem xa can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hiem xa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.