Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tim hoc te snippets" » "tin hoc te snippets", "tam hoc te snippets", "tim ho te snippets", "tim hoc tu snippets", "tim 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: (((("tim 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: (((("tim hoc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tim hoc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tim hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.