Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dinh te snippets" » "do dinh te snippets", "dao minh te snippets", "dao tinh te snippets", "dao kinh te snippets", "dao dich te snippets", "dao dinh ve 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 te 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 te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dinh te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dinh te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.