Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung han da snippets" » "chung nhan da snippets", "chung than da snippets", "chuong han da snippets", "chung han dau snippets", "chung han day snippets", "chung han 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: (((("chung han 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: (((("chung han da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung han da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung han da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.