Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu dai cach snippets" » "huu cai cach snippets", "huu dan cach snippets", "huu doi cach snippets", "huu tai cach snippets", "huu dat cach snippets", "huu hai cach 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: (((("huu dai cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu dai cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu dai cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu dai cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.