Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau doi deu snippets" » "cau doi deu snippets", "chau doc deu snippets", "thay doi deu snippets", "chau doi dau snippets", "chau doi de snippets", "chau moi dieu 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: (((("chau doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau doi deu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau doi deu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.