Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"het cho hoa snippets" » "chat cho hoa snippets", "hiem cho hoa snippets", "thep cho hoa snippets", "het cho hoc snippets", "het chi hoa snippets", "het cho ho 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: (((("het cho hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("het cho hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( het cho hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("het cho hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.