Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap moi cho snippets" » "phap moi cho snippets", "hai moi cho snippets", "thap muoi cho snippets", "hap moi co snippets", "hap hoi cho snippets", "hap 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: (((("hap 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: (((("hap moi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap moi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap moi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.