Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi bach hoi snippets" » "thi bich hoi snippets", "thi hanh hoi snippets", "thi anh hoi snippets", "thi sach hoi snippets", "thi bach hoa snippets", "thi bach khoa 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: (((("thi bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi bach hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi bach hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.