Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con goi cham snippets" » "con hoi cham snippets", "con nguoi cham snippets", "con gioi chau snippets", "cong goi cham snippets", "con coi cham 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: (((("con goi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con goi cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con goi cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con goi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.