Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao duy chi snippets" » "dao duc chi snippets", "do duy chi snippets", "dao du chi snippets", "dao duy phi snippets", "dao duy chien 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 duy chi 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 duy chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao duy chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao duy chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.