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