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