Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hoi cham snippets" » "dan hoi chuc snippets", "dan hoi chu snippets", "dan toc cham snippets", "dan hoc cham snippets", "dai hoi cham snippets", "dang khoi 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: (((("dan hoi 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: (((("dan hoi cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hoi cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hoi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.