Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen hoc cau snippets" » "khien hoc cau snippets", "chung hoc cau snippets", "cho hoc cau snippets", "chen hoc cao snippets", "chen hoc cac snippets", "chen hoc can 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: (((("chen hoc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chen hoc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen hoc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen hoc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.