Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao li doi snippets" » "dao lai doi snippets", "dao le doi snippets", "dai li doi snippets", "dao li dai snippets", "dao ly doi snippets", "dao lieu doi 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 li doi 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 li doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao li doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao li doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.