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