Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi cong den snippets" » "thi cong den snippets", "cho cong den snippets", "phi cong den snippets", "chi cuong den snippets", "chi cong dan snippets", "chi cong de 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: (((("chi cong den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cong den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi cong den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cong den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.