Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui minh cuu snippets" » "chi minh cuu snippets", "thi minh cuu snippets", "vu minh cuu snippets", "bui dinh cuu snippets", "bui vinh cuu snippets", "bui minh cau 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: (((("bui minh cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui minh cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui minh cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui minh cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.