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