Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao thai do snippets" » "dao thi do snippets", "do thai do snippets", "da thai do snippets", "dao thay doi snippets", "dao 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: (((("dao thai 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 thai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao thai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao thai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.