Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham doc cao snippets" » "cham soc cao snippets", "chat doc cao snippets", "chau doc cao snippets", "cham hoc cao snippets", "cham do cao snippets", "cham doc dao 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: (((("cham doc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham doc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham doc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham doc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.