Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu tro da snippets" » "chi tro da snippets", "chieu cao da snippets", "chieu gio da snippets", "chieu tro dao snippets", "chieu tho da snippets", "chieu tro ba 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: (((("chieu tro da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chieu tro da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu tro da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu tro da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.