Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho tu case snippets" » "cho eu case snippets", "cho two case snippets", "choi tu case snippets", "chon tu case snippets", "cho cu case 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: (((("cho tu case snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho tu case snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho tu case snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho tu case snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.