Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can hoc cau snippets" » "van hoc cau snippets", "dan hoc cau snippets", "cao hoc cau snippets", "can hoc cao snippets", "can hoc cac snippets", "can 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: (((("can 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: (((("can hoc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can hoc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can hoc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.