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