Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh dao le snippets" » "doanh dao le snippets", "lanh dao le snippets", "danh dau le snippets", "danh do le snippets", "danh dao ve snippets", "danh hao le 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: (((("danh dao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh dao le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh dao le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh dao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.