Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau can toi snippets" » "hau can thi snippets", "hau van toi snippets", "hau cac toi snippets", "chau can toi snippets", "nhau can toi 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 can toi 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 can toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau can toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau can toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.