Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc chu cho snippets" » "hoc cau cho snippets", "hoc cho cho snippets", "hoc thuc cho snippets", "hoc cu cho snippets", "hoc chu ho snippets", "hoc chung 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: (((("hoc chu 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: (((("hoc chu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.