Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu manh da snippets" » "chieu xanh da snippets", "hieu nganh da snippets", "dieu hanh da snippets", "hieu manh ba snippets", "hieu manh ha snippets", "hieu manh va 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: (((("hieu manh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu manh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu manh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu manh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.