Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham hat mon snippets" » "thai hat mon snippets", "tham khao mon snippets", "pham nhat mon snippets", "tham hao mon snippets", "tham hau mon snippets", "tham nhap mon 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: (((("tham hat mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham hat mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham hat mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham hat mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.