Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho toc cham snippets" » "cho toc thai snippets", "cho hoc cham snippets", "cao toc cham snippets", "cho toa 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: (((("cho toc 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: (((("cho toc cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho toc cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho toc cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.