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