Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ghep moi cho snippets" » "ghep noi cho snippets", "ghet moi cho snippets", "thep moi cho snippets", "ghep moi co snippets", "ghep hoi cho snippets", "ghep mo cho 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: (((("ghep moi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ghep moi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ghep moi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ghep moi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.