Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau mot doi snippets" » "khau mot doi snippets", "dau mot doi snippets", "han mot doi snippets", "hau moi doi snippets", "hau hoat doi snippets", "hau mong doi 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: (((("hau mot doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau mot doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau mot doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau mot doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.