Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu chon con snippets" » "tu cho con snippets", "tu chong cong snippets", "tu khong con snippets", "tu choi con snippets", "tu hon con snippets", "lua chon con 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: (((("tu chon con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu chon con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu chon con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu chon con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.