Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau doc con snippets" » "chat doc con snippets", "cau do con snippets", "phau hoc con snippets", "chau duc con snippets", "chau hoc con snippets", "chau hoc cong 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 con 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 con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau doc con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau doc con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.